Upon stopping at the laboratory table of one of the members of the class in freshman zoology one day in the fall semester of 1913, my attention was attracted to a drawing of a Hydra that aroused my interest at once. At first I thought the student had found two Hydras attached to debris close together, and through an error in observation had made a drawing representing them as connected. But upon looking at the specimen I saw, for the first time in my experience, a Hydra in the process of longitudinal division, the fission having proceeded through the length of the body, the two parts being connected only at the foot.
Proceedings of the Iowa Academy of Science
©1914 Iowa Academy of Science, Inc.
Ross, L. S.
"An Observation of Longitudinal Division of Hydra,"
Proceedings of the Iowa Academy of Science, 21(1), 349-351.
Available at: https://scholarworks.uni.edu/pias/vol21/iss1/46