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Document Type

Research

Abstract

In the normal development of the sparrow testis, a daily period of active spermatogenesis is found between the hours of 2:00 A.M. and 4:00 A.M. This restriction to the hours of darkness appears all the more significant since an inversion of the light period results in the occurrence of mitotic figures during the afternoon hours.

Publication Date

1936

Journal Title

Proceedings of the Iowa Academy of Science

Volume

43

Issue

1

First Page

396

Last Page

397

Copyright

© Copyright 1936 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

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