The Life History, the Normal Fission and the Reproductive Organs of Planaria Maculata: A Dissertation Presented to the Board of University Studies of ... of Doctor of Philosophy (Classic Reprint) - Softcover

Inhaltsangabe

Excerpt from The Life History, the Normal Fission and the Reproductive Organs of Planaria Maculata: A Dissertation Presented to the Board of University Studies of the Johns Hopkins University, for the Degree of Doctor of Philosophy

The absence of reproductive organs during the entire year in Planaria maculata from certain localities and the appearance of these organs regularly each year in others aroused my interest and led me to seek some explanation. While accumulating data upon the presence or absence of these organs in different localities and seasons I found in the localities where reproductive organs are not developed abundant material for a study of the normal fission, and Since the normal fission of Planarians while mentioned by.

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