Science and Medicine

Entries - Entry Category: Science and Medicine

Broadway Bridge

The Broadway Bridge was originally constructed in 1923 as a vehicular structure and replaced in 2017; it is one of six bridges linking the downtown areas of Little Rock (Pulaski County) and North Little Rock (Pulaski County). As the downtown areas of Little Rock and Argenta (present-day North Little Rock) developed in the 1880s, it became apparent that a toll-free bridge independent of the railroad bridges across the Arkansas River was needed. Some people supported the idea of a bridge at the foot of Little Rock’s Main Street, while others thought it should start at Broadway. After years of debate and a series of bridge commissions, the Main Street site was adopted, and the Groton Bridge Company of Groton, New …

Bromine

Bromine (chemical symbol Br) is a highly corrosive, reddish-brown, volatile element found in liquid form. Bromine—along with fluorine, chlorine, and iodine—is part of a family of elements known as the halogens. Arkansas ranks first in the world in the production of bromine, the basis for many widely used chemical compounds. Bromine, along with petroleum and natural gas, is one of the top three minerals produced in Arkansas. The West Gulf Coastal Plain encompasses most of southern Arkansas. During the Paleozoic era (543 to 248 million years ago), this natural division was covered by seawater. Bromine, which occurs naturally in seawater, was extracted from the water by seaweed and plankton. As these organisms decomposed during the Jurassic period (206 to 144 …

Brooks, Ida Josephine

Ida Josephine Brooks was a teacher and early school administrator in Little Rock (Pulaski County). She was among Arkansas’s earliest women physicians and the first female faculty member at the University of Arkansas Medical School (now the University of Arkansas for Medical Sciences). She also took an active role in advocating for women’s rights. Ida Joe Brooks, the fourth of six children, was born at Muscatine, Iowa, on April 28, 1853, to Methodist minister Joseph Brooks and Elizabeth Goodenough Brooks. Brooks’s father was a candidate for governor in Arkansas in 1872 against Elisha Baxter. Both candidates claimed victory, precipitating the Brooks-Baxter War, with Brooks the loser. Little is known of Ida Joe Brooks’s childhood education. She graduated from Central High …

Brownlee, Robert

Robert Brownlee was a Scottish stonemason who lived in Little Rock (Pulaski County) from 1837 to 1849. He helped build the first statehouse in Arkansas and several other historic landmarks in Pulaski County. Robert Brownlee was born on April 24, 1813, in Bonkle, Cambusnethan Parish, a tiny community in the Scottish lowlands. He was ninth in a family of seven sons and four daughters born to Margaret and Alexander Brownlee. After a basic education at Murdestoun Estate School near Bonkle, he apprenticed to his older brother, William, a stonecutter. Brownlee was twenty-three when he read about the December 1835 fire that almost destroyed New York City and the need for mechanics to help rebuild the city. That same day, he …

Bryozoans

aka: Ectoprocta
aka: Moss Animals
Bryozoans (commonly called moss animals) are generally sessile, colonial invertebrates that belong to the phylum Bryozoa (or Ectoprocta), which is sometimes combined with two other phyla (Phoronida and Brachiopoda) to form a possible clade within the Deuterostomia. The three are sometimes referred to as the Lophophorata. Fossil bryozoans commonly found in Arkansas can be divided into two broad groups: the lacy colonies and the twig-shaped colonies. One fossil, the Archimedes, is especially abundant in northwestern Arkansas. In the southeastern United States, large gelatinous colonies of P. magnifica are a common sight, sometimes called “dinosaur snot.” These are often seen at Lake Wilhelmina in Polk County, and some have been reported in eastern Arkansas County. The primary uniting characteristic of this …

Buchanan, Herbert Earle

Herbert Earle Buchanan was a nationally known astronomer, mathematician, teacher, and sports reformer. His research significantly advanced a mathematical understanding of the stability of the orbits of heavenly bodies, and he authored numerous college and university textbooks. Buchanan was very interested in athletics and was one of the founders of the National Collegiate Athletics Association. Buchanan was born in Cane Hill (Washington County) on October 4, 1881, to Susan Clark Williamson and James A. Buchanan, a Civil War veteran who became a farmer, surveyor, and circuit-riding Presbyterian minister. After attending the local “subscription school,” in which the family of each attending child paid a pro-rated fee, Buchanan entered the college preparatory program at Arkansas Industrial University (later the University of …

Bull Shoals Dam and Lake

Bull Shoals Dam site is located on the White River about ten miles west of Mountain Home (Baxter County), where the river divides Baxter and Marion counties. The site is named after its location at a shoal (a shallow and swift reach of river), borrowing from the French “Boill,” meaning a large spring. Private power companies had explored the possibility of building a dam at Wildcat Shoals above Cotter (Baxter County) as early as 1902 but never began any work toward it. Congress approved the construction of six reservoirs in the White River Basin in the Flood Control Act of 1938. A U.S. Army Corps of Engineers report in 1930 had recommended the Wildcat Shoals site along with seven others …

Busey, Samuel Thompson

Samuel Thompson Busey was a 1920s oil speculator and promoter of the Arkansas oil industry. While originally trained as a physician, he later became a geologist and completed the famed “Discovery Well,” or Busey No. 1 Well, outside El Dorado (Union County) in 1921. Busey’s efforts helped usher in the south Arkansas oil boom of the 1920s. Samuel Busey was born in Champaign County, Illinois, on February 10, 1867, and was the fifth of six children of John Simpson Busey and the former Caroline Marie Snyder. Busey came from a family of adventurers and community activists. His father was a farmer until 1845, when he left farming to travel across the United States. His father then took over his own …

Butterflies and Moths

Arkansas has long been an ideal place to see butterflies and moths, but an increase in public awareness has occurred since the mid-1990s with the publication of scientific papers and checklists, as well as the emergence of special events in state parks. Butterflies and moths are classified in the insect order Lepidoptera, meaning “scale-wing.” Of approximately 350,000 species of butterflies and moths on earth, approximately 15,000 species are butterflies. Butterflies are distinguished from moths by the thousands of microscopic scales that create the color patterns on both sides of the wings. During a typical year, 134 butterfly species may be sighted in Arkansas, including year-round residents, summer residents, and migrants; 94 of these species live on Mount Magazine. An estimated …

Caddisflies

aka: Trichopterans
Caddisflies (Phylum Arthropoda, Class Insecta, Order Trichoptera) make up the largest and most diverse group of aquatic insects. More specifically, caddisflies are a group of small to medium-sized (2 to 30 mm in length), moth-like insects with two pairs of hairy membranous wings; they have aquatic larval forms that metamorphose into terrestrial adults. The name for the order Trichoptera comes from the name Trichos, which means “hairy,” and ptera, which means “wings.” The word “caddis” dates back to The Compleat Angler, written by Izaak Walton (1594–1683) and published in 1653, in which “cod-worms or caddis” were named as being used for bait. Caddisflies are a favorite food of many fish, and therefore are attractive to anglers, particularly trout fly fishermen, …

Caddo Mountain Salamander

aka: Plethodon caddoensis
The Caddo Mountain salamander (Plethodon caddoensis) is a slender, medium-sized (90–100 millimeters in total length) terrestrial salamander. It is one of twenty or so members of the caudate family Plethodontidae that can be found in Arkansas. Adults of this species possess numerous tiny white spots and/or brassy flecks on the back and tail; the dorsal body color is otherwise uniformly black. The lateral body surfaces are creamy white in appearance. The throat region is distinctly pale or white. Juveniles may lack much of the lateral body coloration. This species is one of three endemic salamanders known to exist in Arkansas and is primarily confined to the Caddo Mountains area of the southern Ouachita National Forest and several outlying areas in …

Carpenter Dam

aka: Lake Hamilton
Carpenter Dam is the second of three dams constructed along the Ouachita River in the vicinity of Hot Springs (Garland County), following Remmel Dam (completed in 1924) and preceding Blakely Mountain Dam (completed in the 1950s). The concrete gravity dam was built by Arkansas Power and Light (AP&L), which later became Entergy, for purposes of producing hydroelectric power. It impounds the 7,200-acre Lake Hamilton. Carpenter Dam was listed on the National Register of Historic Places on September 4, 1992, in recognition of its role in the growth and development of Hot Springs. Flavius Josephus (Flave) Carpenter, an associate of AP&L president Harvey Couch, selected the site for the construction of Carpenter Dam, ten miles upstream from Remmel Dam, and so …

Carps

In Arkansas, carps are an invasive (exotic or non-native) species whose introduction has caused economic and/or environmental damage. To date, there are five species of invasive carps that have entered or have been deliberately introduced into Arkansas for various reasons, and all belong to the order Cypriniformes and the minnow family Cyprinidae. Many of these fish originated from Asia or Europe, were introduced into North America, and pose a major threat to the ecology of native fishes, the environment, and the economy of fisheries in Arkansas. The longer it takes to respond to the damage done to an ecosystem done by these fish, the more money and time must be spent restoring and protecting that ecosystem. Grass Carp The grass …

CARTI

aka: Central Arkansas Radiation Therapy Institute
CARTI is a not-for-profit organization that treats cancer patients, even if they cannot pay. As of 2013, CARTI has treated more than 220,000 patients. CARTI is headquartered in Little Rock (Pulaski County) and has locations in the city at St. Vincent Health and Baptist Health Medical Center, as well as radiation therapy centers in North Little Rock (Pulaski County), Conway (Faulkner County), Searcy (White County), Mountain Home (Baxter County), and Pine Bluff (Jefferson County). It has hematology and oncology locations in Little Rock, North Little Rock, Heber Springs (Cleburne County), Benton (Saline County), Morrilton (Conway County), El Dorado (Union County), Clinton (Van Buren County), and Monticello (Drew County). During the 1960s, radiation therapy in Arkansas consisted of individual cobalt units treating …

Cave Crayfishes

aka: Troglobitic Crayfishes
Crayfishes belong to the Phylum Arthropoda, Subphylum Crustacea, Class Malacostraca, Order Decapoda, and Family Cambaridae. Crayfishes are a taxonomically diverse cosmopolitan group with more than 669 species worldwide. There appear to be two centers of geographic diversity, one in southeastern Australia (Southern Hemisphere center) and one in the southeastern United States (Northern Hemisphere center) in the southeastern Appalachian Mountains. Obligate cave-dwelling taxa in the United States occur in five main karst (limestone) geographic regions: (1) the Cumberland Plateau of the southern Appalachians of eastern Kentucky, eastern Tennessee, and northern Alabama; (2) the Interior Lowlands of southern Indiana, western Kentucky, and northwestern Tennessee; (3) the Greenbrier Valley of West Virginia; (4) the Ozark Plateau of southwestern Missouri, northern Arkansas, and eastern …

Cave Fishes

aka: Hypogean, Phreatic, Stygobitic, Subterranean, Troglomorphic, and Troglobitic Fishes
Cavefishes, found in fresh and brackish water, are adapted to living in caves and other subterranean habitats. There are more than 200 species of obligatory cavefishes found on all continents, except for Antarctica. New cavefish species continue to be described annually, and there are certainly undescribed species yet to be discovered. In terms of relative numbers of species on various continents, by far the greatest diversity is in Asia with more than 120 species, followed by South America with more than thirty species, and about thirty species in North America. In comparison, nine species are known from Africa, five from Oceania, and only a single species from Europe. China possesses the greatest diversity with more than eighty species, followed by …

Centipedes

Centipedes (class Chilopoda) are myriapods that include two subclasses, five living orders, and about 2,800 described species (out of an estimated worldwide fauna of approximately 8,000 species) within about twenty-three families. Their fossil history dates back over 410 million years ago to the late Silurian Period of the Paleozoic Era. In terms of worldwide geographic distribution, centipedes are found north of the Arctic Circle and inhabit all subarctic regions but are most abundant in temperate, desert, and tropical areas, where they are common terrestrial invertebrates. Humans have unintentionally introduced several species onto most oceanic islands. However, one order (Craterostigomorpha) is endemic to New Zealand and Tasmania. Members of the families Oryidae and Scutigeridae and of the subfamily Otostigminae have been …

Central Arkansas Veterans Healthcare System

The Central Arkansas Veterans Healthcare System (CAVHS) is a Department of Veterans Affairs (VA) healthcare provider. It is part of the South Central VA Health Care Network (VISN 16), which includes facilities in Oklahoma, Arkansas, Louisiana, Mississippi, Texas, and Florida. CAVHS, a tertiary care facility classified as a Level 1b on the VA Complexity Model, is one of the largest and busiest VA medical centers in the country and was recognized nationally in 2010 with the Robert W. Carey Performance Excellence Award—the highest honor a VA facility can receive for quality achievement and service excellence. The system’s two hospitals, John L. McClellan Memorial Veterans Hospital in Little Rock (Pulaski County) and Eugene J. Towbin Healthcare Center in North Little Rock (Pulaski County), …

Central Mudminnows

aka: Umbrids
The central mudminnow (Umbra limi) is a small (51 to 132 mm [2 to 5 in.]) fish that belongs to the Family Umbridae and Order Esociformes. There are three other North American members of the family: the eastern mudminnow (U. pygmaea) of the Eastern Seaboard and Atlantic Coastal Plain, the Alaska blackfish (Dallia pectoralis) that occurs in Alaska and adjacent Siberia, and the Olympic mudminnow (Novumbra hubbsi) of the Olympic Peninsula of Washington. All of these are strictly Northern Hemisphere freshwater species. A third Umbra species, the European Mudminnow (U. krameri), occurs widely throughout Europe. Mudminnows are most closely related to esocids (pikes and pickerels). The fossil record includes specimens that date back to the Oligocene of Eurasia and North …

Centrarchid Fishes

aka: Sunfishes
The Centrarchidae (sunfishes) are a family of North American native freshwater ray-finned fish belonging to the order Perciformes. There are eight genera and thirty-eight species in the family, thirty-four of which (eighty-nine percent) are extant. The group includes several game and pan fishes familiar to anglers, including smallmouth and largemouth basses, bluegills (“bream”), and crappies. The eight genera are: Acantharchus (mud sunfish), Ambloplites (rock basses), Archoplites (Sacramento perch), Centrarchus (flier), Enneacanthus (banded sunfishes), Lepomis (sunfishes), Micropterus (black basses), and Pomoxis (crappies). In Arkansas, there are five genera and twenty-two species of centrarchids, of which eighteen are native and four are introduced. The latter includes the rock bass (Ambloplites rupestris), redbreast sunfish (Lepomis auritus), redeye bass (Micropterus coosae), and shoal bass …

Cestodes

aka: Tapeworms
Cestodes (tapeworms) include flatworms belonging to the phylum Platyhelminthes, class Cestoidea, subclasses Cestodaria (two orders) and Eucestoda (sixteen orders), and about fifty-nine families. The subclass Cestodaria includes monozoic (unsegmented) tapeworms containing only a single set of male and female reproductive organs; these are parasitic in the intestinal tract and body cavity of fishes and turtles. The subclass Eucestoda is made up of polyzoic (segmented) or monozoic cestodes of varying structure and parasitic in the intestines of vertebrates. To date, there are more than 5,000 described species that, as endoparasites, infect all vertebrate classes. The classification of tapeworms remains ambiguous using classical morphological studies alone, and, although some studies have been done recently using molecular tools, further attention is needed to …

Chandler, Florence Clyde

Florence Clyde Chandler was a plant geneticist with a broad background in tree-breeding and the induction of polyploidy (the quality of having one or more extra sets of chromosomes) in flowering plants. Her exceptional success inducing polyploidy in the nuclei by using colchicines resulted in the production of a series of outstanding tetraploid and diploid verbenas. During World War II, she worked at the Guatemalan experimental station as a cinchona (a type of evergreen tree) breeder, where she furthered the successful development of a derivative for quinine, a malaria remedy. Born on September 28, 1901, in Oliver (Scott County) to William Festus Chandler and Nannie Charlotte Shannon, Florence Chandler was educated at the University of Arkansas (UA) in Fayetteville (Washington …

Cholera

Cholera, a deadly, infectious gastrointestinal disease that usually spreads through contaminated water, is an acute infection of the small intestine caused by the toxin released by the Vibrio cholerae bacteria, leading to severe diarrhea and dehydration. Left untreated, cholera can be fatal in a matter of hours. The first cholera pandemic of 1817–1823 spread from India to Southeast Asia, Central Asia, the Middle East, Russia, and Europe, especially England. Cholera was prevalent in the 1800s in America beginning in New York City. Due to increased traveling, the use of steamboats, and more navigable waterways, cholera made its way to the Mississippi Delta region. In October 1832, cholera reached Arkansas. An infected passenger boarded the steamboat Volant, captained by Charles Kelley. …

Chordate Parasites

aka: Parasitic Chordates
Although the majority of the world’s parasites are protists, helminths, invertebrates, and other miscellaneous groups of organisms, parasitism has also arisen within animals of the phylum Chordata (subphylum Vertebrata). All chordates, at some time in their development, possess five derived morphological characteristics as follows: (1) a dorsal tubular or hollow nerve cord, (2) a notochord, (3) pharyngeal gill slits or pouches, (4) an endostyle, and (5) a post-anal tail. Some examples of parasitic chordates are remoras (which attach to sharks and rays); the jawless fishes (lampreys and hagfishes), which prey upon other fishes; some birds that practice brood parasitism; and vampire bats. The Superclass Agnatha has both extinct groups and extant species, including the “jawless” fish (lamprey and hagfish) that …

Chowning, Frank Edwin

Frank Chowning was a longtime Little Rock (Pulaski County) attorney. He was also a plant enthusiast whose work with irises, especially his hybridization efforts, earned him an international reputation. Francis Edwin Chowning was born on May 26, 1894, in Rison (Cleveland County) to Nathaniel Barnett Chowning and Deborah Curtis Marks Chowning. Chowning grew up and received his early education in Rison before attending Henderson-Brown College (now Henderson State University) in Arkadelphia (Clark County). His time at Henderson-Brown was interrupted by World War I, during which Chowning served in the U.S. Army, earning the rank of lieutenant while stationed in France. Following the war, he earned his law degree from Vanderbilt University in 1922. He married Martha Speakes Bradford in 1928, …

Chytrid Fungus

Chytrid (pronounced “kit-rid”) fungus belongs to the Kingdom Fungi, Phylum Chytridiomycota, Class Chytridiomycetes, and Order Rhizophydiales, a division of zoosporic organisms. The fungus causes the disease chytridiomycosis, originally generated by Batrachochytrium dendrobatidis (Bd). An amphibian chytrid (discovered in 1998)—which causes an infection of the skin, with an affinity to frogs and toads—is present on every amphibian-inhabited continent. Further, broad lineage and genotypic variation have been found in B. dendrobatidis. The disease has resulted in a serious decline and extinction of more than 200 species of amphibians worldwide and poses the greatest threat to biodiversity of any known disease. By 2021, the fungus had pushed the regression of at least 501 amphibian species, or about one out of every 16 (6.3 …

Civil War Medicine

Medical treatment during the Civil War focused on two major areas: disease and wound care. As many as 700,000 members of the military lost their lives during the war, and approximately two-thirds of these deaths were due to disease. These figures do not include deaths suffered by the civilian population. Diseases were common before the war, especially yellow fever, cholera, and typhoid, but the war magnified their effect and sometimes brought them to epidemic proportions. The outbreak of war led to a massive mobilization effort in the state. Thousands of men joined military units and moved into camps with limited sanitary facilities. This lack of clean water, coupled with the large numbers of men living in close proximity, led to …

Cladocerans

aka: Water Fleas
Water fleas (cladocerans) belong to the Phylum Arthropoda, Subphylum Crustacea, Class Branchiopoda, and Order Cladocera. Over 700 species and more than 100 genera have been recognized, but many additional species are surely undescribed. The genus Daphnia alone contains around 150 species. The order forms a monophyletic group, which is divided into four suborders and eleven families as follows: Anomopoda (five families), Ctenopoda (two families), Haplopoda (one family), and Onychopoda (three families). Although a complete survey of the cladocerans of Arkansas has not been given, about twenty species/taxa within five families have been reported. Cladocerans first appeared in the Permian. Until recently, the evolutionary history of cladocerans has been obscured by a mixture of erroneous fossil identifications and assumptions. However, knowledge …

Clark, Mamie Katherine Phipps

Hot Springs (Garland County) native Mamie Phipps Clark was the first African American woman to earn a Doctor of Philosophy degree in psychology from Columbia University. The research she did with her husband was important in the success of the 1954 case Brown v. Board of Education of Topeka, Kansas, in which the United States Supreme Court declared the segregation doctrine of “separate but equal” with regard to education to be unconstitutional on account of such separation generating “a feeling of inferiority as to their status in the community” on the part of Black students. Mamie Phipps was born on October 18, 1917, in Hot Springs to British West Indies native Harold H. Phipps, a physician, and Kate Florence Phipps, …

Clegg, Moses Tran

Bacteriologist Moses Tran Clegg attracted international attention in 1909 when he reportedly became the first person to grow the leprosy bacillus in a laboratory. It was hoped that this breakthrough would lead to a vaccine to treat leprosy, also called Hansen’s disease, an infectious, disfiguring, and incurable disease caused by the bacillus Mycobacterium leprae. In addition to this achievement, Clegg also did research for the U.S. government on bubonic plague, amoebic dysentery, infantile paralysis, and cholera, and he coauthored scholarly bulletins on such bacteriological subjects as leprosy, amoebas, and parasitic protozoa. Born on September 1, 1876, in Red Bluff (Jefferson County) to Joseph T. Clegg, who was an allopathic doctor, and Ida Daugherty Clegg, Moses Clegg received his primary education …

Climate and Weather

Officially classified by climatologist Wladimir Köppen as having a humid sub-tropical climate, Arkansas is indeed humid, but numerous weather extremes run through the state. Humid sub-tropical is classified generally as a mild climate with a hot summer and no specific dry season. The Köppen classification is correct in that regard, but the state truly has four seasons, and they can all range from fairly mild to incredibly extreme. The topography of the land and its proximity to the plains to the west and the Gulf of Mexico to the south play a crucial role in its climate and weather. In the United States, warm, moist air travels into the plains from the Gulf of Mexico and interacts with cool, dry …

Climate Change

aka: Global Warming
The spring of 2019 brought record flooding along the Arkansas River from Van Buren (Crawford County) to its confluence with the Mississippi River in the east. Historic crests occurred at Dardanelle (Yell County), Morrilton (Conway County), Toad Suck Lock and Dam near Conway (Faulkner County), and Pendleton (Desha County) between May 30 and June 6. In July 2019, the National Weather Service reported that the remnants of Hurricane Barry dumped 16.17 inches of rain on Dierks (Howard County), the most rain ever measured in a twenty-four-hour period (1:00 p.m. July 15 through 1:00 p.m. July 16) in Arkansas; the three-day total of 16.59 inches was the most rain associated with a tropical system in recorded state history. Murfreesboro (Pike County) …

Cnidarians

aka: Hydroids
aka: Corals
aka: Jellyfishes
aka: Sea Anemones
Cnidarians (hydroids, jellyfishes, corals, and sea anemones) form a diverse phylum (Cnidaria, old Phylum Coelenterata) that contains more than 10,000 species. The phylum also includes the parasitic Myxozoa. Typical cnidarians inhabit aquatic (predominantly marine) environments. Cnidarians are divided into two major groups: the Anthozoa (corals, sea anemones, and sea pens), which live as sessile polyps, and the subphylum Medusozoa (Hydra, jellyfishes, and sea wasps), many of which form a free-swimming medusa as well as polyps. There are five main classes: Anthozoa, Cubozoa, Hydrozoa, Scyphozoa, and Staurozoa. Only a few cnidarians can be found in Arkansas, including a jellyfish seen in lakes and rivers. In terms of evolutionary relationships, modern molecular phylogenetic results support the notion that anthozoans represent the first …

Coccidia

Coccidians are microorganisms belonging to the Phylum Apicomplexa and Suborder Eimeriorina, which includes eight to thirteen families, about 39 genera, and well over 2,000 species. These protists are intracellular (meaning they function inside the cell) parasites of medical and veterinary importance, including those in the genera Caryospora, Cryptosporidium, Cyclospora, Eimeria, Isospora, Sarcocystis, and Toxoplasma. Most are considered intestinal parasites that infect both invertebrates as well those animals in all vertebrate classes. These parasites cannot complete their life cycle without exploiting a host. Coccidiosis is a general term for the disease they can cause, and it is recognized as a major health concern in wild animal populations, domestic animals, and zoo animals. However, some infections appear not to cause any pathology …

Cockroaches

aka: Blattodea
Cockroaches belong to the Phylum Arthropoda, Subphylum Labiata, Superclass Hexapoda, Class Insecta, and Order Blattodea. The order includes approximately 4,600 species in almost 500 genera and seven families. Very likely at least twice this number remains to be discovered and described worldwide. Some of the most well-known cockroach examples are two pest species belonging to the family Blattidae: the American cockroach (Periplaneta americana) and German cockroach (Blattella germanica). Cockroaches are considered one of the most successful groups of invertebrates because of their adaptability in various environmental conditions and occupy a very wide range of habitats from caves to mountains to rainforests to deserts. As a group, cockroaches also exhibit a remarkable diversity of form, coloration, size, and behavior. Although no …

Coffin, Frank Barbour

Frank Barbour Coffin was an African American pharmacist who owned and operated one of the earliest drugstores serving the Black community of Little Rock (Pulaski County). He was also one of the country’s unnoted African American poets of the nineteenth and twentieth century, barely remembered today for his two volumes of poetry and other works printed in various publications. F. B. Coffin was born on January 12, 1870, in Holly Springs, Mississippi, the son of Samuel and Josephine Barton Coffin. Holly Springs was a small town in northern Mississippi, about forty miles from Memphis, Tennessee. His mother died before he was twelve years old, leaving Coffin and at least four other siblings to be raised by their father, a farmer. …

Coggs, Granville Coleridge

Granville Coggs was a pilot in the United States Army Air Corps and was one of the Original Tuskegee Airmen. He later attended Harvard Medical School and became the first African American to serve as staff physician at the Kaiser Hospital in San Francisco, California. In 2001, he became a member of the Arkansas Black Hall of Fame. Granville Coleridge Coggs was born on July 30, 1925, in Pine Bluff (Jefferson County) to Dr. Tandy Washington Coggs and Nannie Hinkle Coggs. The family later moved to Little Rock (Pulaski County). His father was an educator who served as the president of Arkansas Baptist College from 1937 to 1955. Coggs attended Dunbar High School, graduating in 1942. Coggs took classes at …

Collembollans

aka: Springtails
Springtails (collembolans) belong to the phylum Arthropoda and subphylum Hexapoda. They form the largest (about thirty-five families and 9,000 different species) of the three lineages of modern hexapods that are no longer considered to be included in the class Insecta (the other two are the proturan and dipluran apterygotes). Since each has internal mouthparts, the three are sometimes grouped together into a class called Entognatha. However, they do not appear to be any more closely related to one another than they all are to insects, which have external mouthparts. Indeed, they do share some features of insects, such as a body divided into three parts, a head with antennae, a three-segmented thorax, and each segment having a pair of jointed …

Community Mental Health Centers

Community mental health centers (CMHCs) are designed for those with mental health concerns but inadequate resources to pay for services. They vary regarding the range of services provided. Some centers offer individual and group psychotherapy and medication management, while others include partial hospitalization programs; psychological, personality, forensic, and intellectual evaluations; emergency/crisis treatment; and consultation/education programs. Most CMHCs determine clients’ fees from a “sliding scale,” meaning that the fee is based upon the person’s income level and ability to pay. Fees can be as low as $5 or $10 per session. The costs of providing services are funded by federal, state, and local grants. As of 2011, fifteen community mental health centers in Arkansas serve more than 141,000 individuals throughout the …

Conway Regional Health System

Founded in 1921, Conway Regional Health System (CRHS), anchored by Conway Regional Medical Center (CRMC) in Conway (Faulkner County), serves Faulkner, Cleburne, Conway, Perry, Pope, Van Buren, and Yell counties. CRHS’s mission is to provide high-quality healthcare services for the region. During a meeting of the Conway Rotary Club in 1921, Dr. Cecil H. Dickerson, a local physician and club member, proposed building a hospital in the town. (The Rotary Club is an international community service organization for business and professional leaders.) During 1922 and 1923, Dickerson, joined by community leaders and activists, launched a bond drive to fund the new hospital’s construction. Local women organized the Faulkner County Hospital Auxiliary to raise funds. John E. Little, a Conway banker …

Coronavirus Disease 2019 (COVID-19) Pandemic

The Coronavirus Disease 2019 (COVID-19) began sweeping the world beginning in late 2019. The virus created a large-scale public health crisis and caused some countries to quarantine entire regions—or, in the case of Italy, the entire nation. The pandemic also cratered the economies of many nations throughout the world. The virus was first detected in Arkansas in March 2020. COVID-19 is an infectious disease closely related to the original SARS virus (SARS-CoV), which produced a worldwide epidemic in 2002–2003; the virus that causes COVID-19 is, in fact, designated SARS-CoV-2. The name stems from the virus’s appearance in electron micrographs, exhibiting a crown (corona) shape. Symptoms of COVID-19 include cough and fever, and the disease spreads like influenza, through droplets in …

Cotter Bridge

aka: R. M. Ruthven Bridge
Completed in 1930, the R. M. Ruthven Bridge, originally named and often still called the Cotter Bridge, is located near Cotter (Baxter County) on the business route of U.S. Highway 62 and crosses the White River between Baxter and Marion counties. Recognizable for its Rainbow Arches, it was the first landmark in Arkansas to become a National Historic Civil Engineering Landmark and is one of only a small number of bridges designated as such. East-west travelers through northern Arkansas often encountered problems crossing the White River. Although ferries operated at several places along the river, the river had a tendency to flood rapidly, grounding the ferries and hindering traffic sometimes for several days. The fastest detour was to cross 100 …

Coulter, Wallace Henry

Wallace Henry Coulter was an engineer, inventor, and entrepreneur who was co-founder and chairman of Coulter Corporation, a worldwide medical diagnostics company headquartered in Miami, Florida. The two great passions of his life were applying engineering principles to scientific research and embracing the diversity of world cultures. Wallace Coulter was born on February 17, 1913, in Little Rock (Pulaski County) to Joseph R. Coulter and Minnie May Johnson Coulter. His father was a train dispatcher, and his mother was an elementary school teacher; he had one brother. Coulter spent his youth in McGehee (Desha County), graduating from McGehee High School. He attended his first year of college at Westminster College in Fulton, Missouri; his interest in electronics, however, led him …

Crisis Pregnancy Centers

Often affiliated with anti-abortion Christian organizations such as Care Net and Heartbeat International, crisis pregnancy centers (CPCs), which are also known as pregnancy resource centers, target women facing decisions about unintended pregnancies. In many states, including Arkansas, the centers offer free informational and assistive services designed to dissuade women from choosing abortion. In the late 1960s, before the U.S. Supreme Court’s ruling in Roe v. Wade (1973) legalizing first-trimester abortion, CPCs originated in response to the liberalization of state abortion laws. Beginning in the 1980s, during anti-abortion Republican Ronald Reagan’s presidency, CPCs began to receive public funding and increase in number. By 2016, CPCs existed in more than 3,500 locations in the United States, outnumbering abortion clinics. By 2021, according …

Cross, John Storrs

John Storrs Cross became a national and international expert in all types of electronic communication as a member of the U.S. Department of the Interior, the U.S. Navy during World War II, and the U.S. Department of State, as well as the Federal Communications Commission (FCC). In Arkansas, he was the engineer for Hot Springs National Park in Hot Springs (Garland County) in the 1930s and ran a motel with his wife near Eureka Springs (Carroll County) in the later part of his life. John S. Cross was born in Birmingham, Alabama, on September 18, 1904, to Thomas C. Cross and Elise T. Cross. He had one younger sister, Elise. In his high school years, he attended the private McCallie …

Crustaceans

Crustaceans (subphylum Crustacea) are a very large and diverse group of arthropods (invertebrate animals having an exoskeleton, jointed appendages, and segmented bodies). Crustaceans are distinguished by having paired mandibular jaws and maxillae, along with two pairs of antennae. Recent classifications include six classes within crustaceans—Branchiopoda, Remipedia, Cephalocarida, Maxillopoda, Ostracoda, and Malacostraca. The Classes of Crustacea Class Branchiopoda includes several groups of primitive aquatic and marine animals, including clam shrimp, the small fairy shrimp (less than one centimeter in length and living in temporary pools), and the “living fossil” tadpole shrimp. The most noteworthy brachiopods are the cladocerans, or water fleas, that make up many of the zooplankton in Arkansas lakes and ponds. These small, free-swimming animals are a critical food …

Cude v. State

Archie Cude, a farmer who was born and reared around Houston, Texas, moved his young family in 1948 to the remote community of Board Camp nine miles east of Mena in the mountains of Polk County. Years later, he refused to put his children in school due to his claims that God opposed the smallpox vaccinations children had to take before enrolling. Cude’s long-running legal fight over his unvaccinated children, which embroiled Governor Orval E. Faubus, finally produced an order from the Arkansas Supreme Court in 1964 that his religious beliefs did not exempt him from obeying laws requiring the education of his children and also helping to protect children and teachers from the dreaded smallpox virus. Cude v. State, …

Cyprinids

The Cyprinidae is a diverse family of mainly freshwater fishes belonging to the ostariophysian order Cypriniformes, collectively called cyprinids. They include carps, true minnows, and their relatives. The Cyprinidae is the largest and most diverse fish family and, in general, the largest vertebrate animal family, with about 3,160 species, of which only 1,270 are extant, divided into about 376 genera. The family occurs in Africa, Eurasia, and North America (northern Canada to southern Mexico). Only two species of cyprinids occur in true marine waters, daces (Tribolodon brandtii and T. sachalinensis) from eastern Asia, and a few stray into brackish water only very rarely. More than sixty-two species of cyprinids are known from Arkansas, which represents almost a third of the …

DeGray Dam and Lake

DeGray Dam, located about eight miles northwest of Arkadelphia (Clark County), impounds the 13,400-acre DeGray Lake on the Caddo River. It was built by the U.S. Army Corps of Engineers (USACE) for purposes of electricity generation and flood control, as well as establishing a drinking water supply for Arkadelphia, and is the first “pump back capable impoundment” in the Corps’s history. A reregulation dam forms a 400-acre impoundment below the main lake, providing a supply of water that can be pumped back into DeGray Lake during times of drought and used again for hydropower generation and to provide a steady flow of water on the Caddo River. The site where DeGray Dam stands had been considered for a dam since …

Dellinger, Samuel Claudius

Samuel Claudius Dellinger was curator of the University of Arkansas Museum in Fayetteville (Washington County) and head of the Department of Zoology for over thirty years. As curator, he built the museum’s archaeology collection into one of the best in the nation. In Dellinger’s view, the museum was, first and foremost, an educational resource for the people of Arkansas, and he worked to generate interest in it from the university community and the general public. Samuel Dellinger was born on January 14, 1892, in Iron Station (later Lincolntown), North Carolina, to Robert H. and Laura Loftin Dellinger. After graduating from high school, Dellinger attended Trinity College (later Duke University), where he was a varsity wrestler and swimmer. Dellinger earned his …