Libbie Hyman
Encyclopedia
Libbie Henrietta Hyman was an American zoologist.

Born in Des Moines, Iowa
Des Moines, Iowa
Des Moines is the capital and the most populous city in the US state of Iowa. It is also the county seat of Polk County. A small portion of the city extends into Warren County. It was incorporated on September 22, 1851, as Fort Des Moines which was shortened to "Des Moines" in 1857...

, she was the daughter of Joseph Hyman and Sabina Neumann. Hyman's father, a Polish/Russian Jew, adopted the surname when he immigrated to the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 as a youth. He successively owned clothing stores in Des Moines, in Sioux Falls, South Dakota
Sioux Falls, South Dakota
Sioux Falls is the largest city in the U.S. state of South Dakota. Sioux Falls is the county seat of Minnehaha County, and also extends into Lincoln County to the south...

, and in Fort Dodge, Iowa
Fort Dodge, Iowa
Fort Dodge is a city and county seat of Webster County, Iowa, United States, along the Des Moines River. The population was 25,206 in the 2010 census, an increase from 25,136 in the 2000 census. Fort Dodge is a major commercial center for North Central and Northwest Iowa. It is located on U.S...

, but the family's resources were limited. Hyman attended public schools in Fort Dodge. At home she was required to do much of the housework. She enjoyed reading, especially books by Charles Dickens
Charles Dickens
Charles John Huffam Dickens was an English novelist, generally considered the greatest of the Victorian period. Dickens enjoyed a wider popularity and fame than had any previous author during his lifetime, and he remains popular, having been responsible for some of English literature's most iconic...

 in her father's small den, and she took a strong interest in flower
Flower
A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants . The biological function of a flower is to effect reproduction, usually by providing a mechanism for the union of sperm with eggs...

s, which she learned to classify with a copy of Asa Gray
Asa Gray
-References:*Asa Gray. Dictionary of American Biography. American Council of Learned Societies, 1928–1936.*Asa Gray. Encyclopedia of World Biography, 2nd ed. 17 Vols. Gale Research, 1998.*Asa Gray. Plant Sciences. 4 vols. Macmillan Reference USA, 2001....

's Elements of Botany. She also collected butterflies and moths and later wrote, "I believe my interest in nature is primarily aesthetic."

Hyman graduated from high school in Fort Dodge in 1905 as the youngest member of her class and the valedictorian. Uncertain of her future, she began work in a local factory, pasting labels on cereal boxes. Her high school teacher of English
English language
English is a West Germanic language that arose in the Anglo-Saxon kingdoms of England and spread into what was to become south-east Scotland under the influence of the Anglian medieval kingdom of Northumbria...

 and German
German language
German is a West Germanic language, related to and classified alongside English and Dutch. With an estimated 90 – 98 million native speakers, German is one of the world's major languages and is the most widely-spoken first language in the European Union....

 persuaded her to attend the University of Chicago
University of Chicago
The University of Chicago is a private research university in Chicago, Illinois, USA. It was founded by the American Baptist Education Society with a donation from oil magnate and philanthropist John D. Rockefeller and incorporated in 1890...

, which she entered in 1906 on a one-year scholarship. She continued at the university with further scholarships and nominal jobs. Turning away from botany because of an unpleasant laboratory assistant, she tried chemistry but did not like its quantitative procedures. She then took zoology and was encouraged in it by Professor Charles Manning Child. After receiving a B.S. in zoology
Zoology
Zoology |zoölogy]]), is the branch of biology that relates to the animal kingdom, including the structure, embryology, evolution, classification, habits, and distribution of all animals, both living and extinct...

 in 1910, she acted on Child's advice to continue with graduate work at the University of Chicago. Supporting herself as laboratory assistant in various zoology courses, she concluded that a better laboratory text was needed, which in time she was to supply. She received a Ph.D. in zoology in 1915, with a thesis on regeneration in certain annelid worms. Again unsure of her future, she accepted a position as research assistant in Child's laboratory, and she taught undergraduate courses in comparative anatomy.

After Hyman's father's death in 1907, her mother had moved to Chicago
Chicago
Chicago is the largest city in the US state of Illinois. With nearly 2.7 million residents, it is the most populous city in the Midwestern United States and the third most populous in the US, after New York City and Los Angeles...

, bringing Hyman "back into the same unhappy circumstances which lasted until the death of my mother in 1929. I never received any encouragement from my family to continue my academic career; in fact my determination to attend the University met with derision. At home, scolding and fault-finding were my daily portion" (quoted in Hutchinson, p. 106).

At the request of the University of Chicago Press, Hyman wrote A Laboratory Manual for Elementary Zoology (1919), which promptly became widely used, to her astonishment. She followed this, again at the publisher's request, with A Laboratory Manual for Comparative Vertebrate Anatomy
A Laboratory Manual for Comparative Vertebrate Anatomy
A Laboratory Manual for Comparative Vertebrate Anatomy is a textbook written by Libbie Hyman in 1922 and released as the first edition from the University of Chicago press. It is also called and published simply as 'Comparative Vertebrate Anatomy'. In 1942 Hyman released the second edition as a...

(1922), which also had great success. She was, however, much more interested in invertebrate
Invertebrate
An invertebrate is an animal without a backbone. The group includes 97% of all animal species – all animals except those in the chordate subphylum Vertebrata .Invertebrates form a paraphyletic group...

s. By 1925 she was considering how to prepare a laboratory guide in that field but "was persuaded by [unnamed] colleagues to write an advanced text" (quoted in Hutchinson, p. 107).

While at the University of Chicago, Hyman also wrote significant taxonomic papers on such invertebrates as the Turbellaria
Turbellaria
The Turbellaria are one of the traditional sub-divisions of the phylum Platyhelminthes , and include all the sub-groups that are not exclusively parasitic. There are about 4,500 species, which range from to in length...

 (flatworms) and North American species of the freshwater cnidarian Hydra
Hydra (genus)
Hydra is a genus of simple fresh-water animal possessing radial symmetry. Hydras are predatory animals belonging to the phylum Cnidaria and the class Hydrozoa. They can be found in most unpolluted fresh-water ponds, lakes, and streams in the temperate and tropical regions and can be found by...

. She published an enlarged edition of her first laboratory manual in 1929.

In 1931 Hyman concluded that she could live on the royalties of her published books, and she also recognized that her mentor Child was about to retire. She therefore resigned her position at Chicago. Hyman toured western Europe for fifteen months and then returned to begin writing a treatise on the invertebrates. Settling in New York City
New York City
New York is the most populous city in the United States and the center of the New York Metropolitan Area, one of the most populous metropolitan areas in the world. New York exerts a significant impact upon global commerce, finance, media, art, fashion, research, technology, education, and...

 in order to use the library of the American Museum of Natural History
American Museum of Natural History
The American Museum of Natural History , located on the Upper West Side of Manhattan in New York City, United States, is one of the largest and most celebrated museums in the world...

, she became, in December 1936, an unpaid research associate of the museum, which provided her with an office for the rest of her life.

There Hyman created her six-volume treatise on invertebrates, The Invertebrates, drawing on her familiarity with several European languages and Russian
Russian language
Russian is a Slavic language used primarily in Russia, Belarus, Uzbekistan, Kazakhstan, Tajikistan and Kyrgyzstan. It is an unofficial but widely spoken language in Ukraine, Moldova, Latvia, Turkmenistan and Estonia and, to a lesser extent, the other countries that were once constituent republics...

, which she had learned from her father. Without any assistant, she compiled notes from books and scientific papers, including those in the many journals to which she subscribed, organized the notes on cards, and wrote an account of each invertebrate group. Colleagues said that she had a prodigious memory. She took art lessons in order to illustrate her work professionally. She also spent several summers studying specimens and drawing illustrations at Bermuda Biological Laboratory, Marine Biological Laboratory
Marine Biological Laboratory
The Marine Biological Laboratory is an international center for research and education in biology, biomedicine and ecology. Founded in 1888, the MBL is the oldest independent marine laboratory in the Americas, taking advantage of a coastal setting in the Cape Cod village of Woods Hole, Massachusetts...

, Mt. Desert Island Biological Laboratory, and Puget Sound Biological Station.

Volume I (Protozoa through Ctenophora) of The Invertebrates, published in February 1940, was acknowledged as "comprehensive" and "authoritative," with "illustrations designed for clarity and simplicity." Volume 2 (Platyhelminthes and Rhynchocoela) and Volume 3 (Acanthocephala, Aschelminthes, and Entoprocta), both published in 1951, were followed by Volume 4 (Echinodermata) in 1955, Volume 5 (Smaller Coelomate Groups) in 1959, and Volume 6 (Mollusca I) in 1967. Hyman's biographer Horace Wesley Stunkard noted that The Invertebrates "incorporates incisive analysis, judicious evaluation and masterly integration of information." Declining health did not allow her to finish the entire subject. The completed volumes, which continue to be significant references in zoology, represent an astonishing accomplishment by an individual.

This work is not notable only as a compendium. In it she developed her scientific theory that the Phylum
Phylum
In biology, a phylum The term was coined by Georges Cuvier from Greek φῦλον phylon, "race, stock," related to φυλή phyle, "tribe, clan." is a taxonomic rank below kingdom and above class. "Phylum" is equivalent to the botanical term division....

 Chordata, including all vertebrate
Vertebrate
Vertebrates are animals that are members of the subphylum Vertebrata . Vertebrates are the largest group of chordates, with currently about 58,000 species described. Vertebrates include the jawless fishes, bony fishes, sharks and rays, amphibians, reptiles, mammals, and birds...

s, was evolutionarily related to the apparently very different and very much more primitive Echinoderm
Echinoderm
Echinoderms are a phylum of marine animals. Echinoderms are found at every ocean depth, from the intertidal zone to the abyssal zone....

ata, such as starfish. This group is now known as the deuterostomes. Her theory was based upon the morphological data of classical embryology, and has since been confirmed by molecular sequence analysis
Sequence analysis
In bioinformatics, the term sequence analysis refers to the process of subjecting a DNA, RNA or peptide sequence to any of a wide range of analytical methods to understand its features, function, structure, or evolution. Methodologies used include sequence alignment, searches against biological...

.

In addition to her major project, Hyman extensively revised A Laboratory Manual for Comparative Vertebrate Anatomy
A Laboratory Manual for Comparative Vertebrate Anatomy
A Laboratory Manual for Comparative Vertebrate Anatomy is a textbook written by Libbie Hyman in 1922 and released as the first edition from the University of Chicago press. It is also called and published simply as 'Comparative Vertebrate Anatomy'. In 1942 Hyman released the second edition as a...

in 1942 into a textbook as well as laboratory manual; she referred to it as her "bread and butter" for its income. She wrote about 136 papers on physiology and systematics of the lower invertebrates and published technical papers on annelid and polyclad worms and on other invertebrates. She commented in a letter: "The polyclads of Bermuda
Bermuda
Bermuda is a British overseas territory in the North Atlantic Ocean. Located off the east coast of the United States, its nearest landmass is Cape Hatteras, North Carolina, about to the west-northwest. It is about south of Halifax, Nova Scotia, Canada, and northeast of Miami, Florida...

 were so pretty that I could not resist collecting them and figuring out Verrill's mistakes" (quoted in Schram, p. 126). Addison Emery Verrill
Addison Emery Verrill
Addison Emery Verrill was an American zoologist. He was a student of Louis Agassiz at Harvard University and graduated in 1862...

 had been an earlier expert in invertebrate classification.

Hyman served as editor of the journal Systematic Zoology from 1959 to 1963. She was honored in 1961 with membership in the National Academy of Sciences
United States National Academy of Sciences
The National Academy of Sciences is a corporation in the United States whose members serve pro bono as "advisers to the nation on science, engineering, and medicine." As a national academy, new members of the organization are elected annually by current members, based on their distinguished and...

, from which she had received the Daniel Giraud Elliot Medal
Daniel Giraud Elliot Medal
The Daniel Giraud Elliot Medal is awarded by the U.S. National Academy of Sciences "for meritorious work in zoology or paleontology published in a three- to five-year period." Named after Daniel Giraud Elliot, it was first awarded in 1917....

 in 1951. She also received the gold medal of the Linnean Society of London
Linnean Society of London
The Linnean Society of London is the world's premier society for the study and dissemination of taxonomy and natural history. It publishes a zoological journal, as well as botanical and biological journals...

 (1960) and a gold medal from the American Museum of Natural History
American Museum of Natural History
The American Museum of Natural History , located on the Upper West Side of Manhattan in New York City, United States, is one of the largest and most celebrated museums in the world...

(1969). She was described as independent, outspoken, and given to poignant epithets, and as warm and generous to her few close friends. Hyman never married. She died in New York City.
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