Word: chromatin
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Dates: during 1930-1930
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Under the supervision of Dr. Stanley Cobb, Dr. F. Fremont Smith and Dr. Hans Zinsser of Harvard's Department of Neuropathology, Dr. Morrison killed five dogs suffering from running fits, made histological brain examination. He found the nuclei of the brain cells broken into bits, with chromatin scattered throughout the cell body. He discovered also great clusters of spider and mossy cells of the neuroglia around the small blood vessels in the white matter of the brain. In normal tissue, these supporting cells should be distributed in rows throughout the white matter. Cell peculiarities of the type found...