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Word: professors (lookup in dictionary) (lookup stats)
Dates: during 1940-1949
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Usage:

Using guines pigs, for example, Professor Frederick L. Hisaw has discovered relaxin, a chemical now known to exist in the human body. His search started several years ago when scientists discovered, much to their chagrin, that pocket gophers were physically incapable of having children. The female pelvis was much too small...

Author: By John J. Sack, | Title: Biologists Regulate Rats in Research Lab | 6/15/1949 | See Source »

...Professor L. R. Cleveland is more interested in the sex life of smaller animals, minute protozoa that live in the bodies of insects. Usually the amoebae reproduce by splitting in half, but inside insects they find a chemical that changes them into males and females...

Author: By John J. Sack, | Title: Biologists Regulate Rats in Research Lab | 6/15/1949 | See Source »

Down the ball from the mice and monkeys is a room full of moth pupas, with their brains cut out. The pupa is the animal inside a cocoon; and Assistant Professor Carroll M. Williams has found that it will live indefinitely but not grow when its brain is removed. He has kept pupas for months in animated suspension and then put their brains back, and they started growing where they left...

Author: By John J. Sack, | Title: Biologists Regulate Rats in Research Lab | 6/15/1949 | See Source »

...probably the only greenhouse where weeds and orchids grow side by side, and where people pay more attention to weeds. It's certainly one of the few greenhouses where plants wear bandages. Professor Kenneth V. Thimann put them on after injecting hormones into the stems to see how growth was affected. His investigation of plant galls may lead to new information on animal cancers...

Author: By John J. Sack, | Title: Biologists Regulate Rats in Research Lab | 6/15/1949 | See Source »

...field of plants, Professor Paul C. Mangelsdorf has recently developed a custom-built corn for New England gardens and named it the Dwarf Harvard Hybrid. The corn, now on the market, is ideally suited to New England gardens and climate. Mangelsdorf's hybrid corns are proving revolutionary for the world's food supply...

Author: By John J. Sack, | Title: Biologists Regulate Rats in Research Lab | 6/15/1949 | See Source »

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