Aaron Louis Treadwell, Ph.D. (1866–1947) was a college professor of

zoology Zoology ( , ) is the scientific study of animals. Its studies include the anatomy, structure, embryology, Biological classification, classification, Ethology, habits, and distribution of all animals, both living and extinction, extinct, and ...

at Vassar. He was born at Redding,

Connecticut Connecticut ( ) is a U.S. state, state in the New England region of the Northeastern United States. It borders Rhode Island to the east, Massachusetts to the north, New York (state), New York to the west, and Long Island Sound to the south. ...

, and educated at

Wesleyan University Wesleyan University ( ) is a Private university, private liberal arts college, liberal arts university in Middletown, Connecticut, United States. It was founded in 1831 as a Men's colleges in the United States, men's college under the Methodi ...

(B.S., 1888; M.S., 1890) and at the

University of Chicago The University of Chicago (UChicago, Chicago, or UChi) is a Private university, private research university in Chicago, Illinois, United States. Its main campus is in the Hyde Park, Chicago, Hyde Park neighborhood on Chicago's South Side, Chic ...

(Ph.D., 1898). He was a professor of

and

geology Geology (). is a branch of natural science concerned with the Earth and other astronomical objects, the rocks of which they are composed, and the processes by which they change over time. Modern geology significantly overlaps all other Earth ...

Miami University Miami University (informally Miami of Ohio or simply Miami) is a public university, public research university in Oxford, Ohio, United States. Founded in 1809, it is the second-oldest List of colleges and universities in Ohio, university in Ohi ...

(1891–1900), professor of

biology Biology is the scientific study of life and living organisms. It is a broad natural science that encompasses a wide range of fields and unifying principles that explain the structure, function, growth, History of life, origin, evolution, and ...

at Vassar (1900–14), and afterwards professor of

. In addition to his work in the schools, he was instructor at the

Marine Biological Laboratory The Marine Biological Laboratory (MBL) is an international center for research and education in biological and environmental science. Founded in Woods Hole, Massachusetts, in 1888, the MBL is a private, nonprofit institution that was independent ...

at Woods Hole. Treadwell published ''The Cytogeny of Podarke obscura'' (1901). His writings dealt chiefly with

annelid The annelids (), also known as the segmented worms, are animals that comprise the phylum Annelida (; ). The phylum contains over 22,000 extant species, including ragworms, earthworms, and leeches. The species exist in and have adapted to vario ...

systematics and

embryo An embryo ( ) is the initial stage of development for a multicellular organism. In organisms that reproduce sexually, embryonic development is the part of the life cycle that begins just after fertilization of the female egg cell by the male sp ...

nics.

References

Biographical Etymology of Marine Organism Names
American zoologists 1866 births People from Redding, Connecticut Wesleyan University alumni University of Chicago alumni 1947 deaths Miami University faculty Vassar College faculty {{US-zoologist-stub