Biographical Memoirs Volume 62 (1993) / Chapter Skim
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Pages 44-45
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From page 44... ...
The cloctoral degree was conferred two years later. Couch's dissertation, "Sexual Reproduction and Variability in the Genus Dictynchus," includecl the report of his discovery of the mode of sexual reproduction, called heterothallism, in the water moist Dictynchus.
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From page 45... ...
F Blakeslee at the Carnegie Institution at Cold Spring Harbor, Long Island, New York, for one year and with B
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