25.2 MB (1.5 MB compressed)
3317 x 2652 pixels
28.2 x 22.4 cm ⏐ 11.1 x 8.8 in (300dpi)
AMERICAN PHILOSOPHICAL SOCIETY / SCIENCE PHOTO LIBRARY AMERICAN PHILOSOPHICAL SOCIETY / SCIENCE PHOTO LIBRARY
Bridges fruit fly genetics research. US geneticist Calvin Blackman Bridges (1889-1938) seated in a laboratory at Columbia University Department of Biology, known as the 'fly room'. Bridges worked on sex-linked traits in the fruit fly (Drosophila melanogaster), producing results that suggested that chromosomes contained units of heredity (genes). Photographed circa 1920.
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