Transcriber’s Note: The images contained within black bordersare clickable for a larger version, if you are using a browser/device that supportsthis functionality.

[i]

Memoirs from the Biological Laboratory
OF THE
JOHNS HOPKINS UNIVERSITY
IV, 4
WILLIAM K. BROOKS, EDITOR

PHYSIOLOGY AND HISTOLOGY
OF
THE CUBOMEDUSÆ

INCLUDING
Dr. F. S. Conant’s Notes on the Physiology

A DISSERTATION PRESENTED TO THE BOARD OF UNIVERSITY STUDIES OF THE JOHNS
HOPKINS UNIVERSITY FOR THE DEGREE OF DOCTOR OF PHILOSOPHY

BY
E. W. BERGER

BALTIMORE
The Johns Hopkins Press
1900

[ii]

PRINTED BY
The Lord Baltimore Press
THE FRIEDENWALD COMPANY
BALTIMORE, MD., U.S.A.

[iii]

This Memoir is a continuation of the work upon the Cubomedusæwhich was begun by the late Dr. Franklin Story Conant, and itcontains his notes of physiological experiments, as well as new resultswhich have been obtained by Dr. E. W. Berger from the study ofmaterial which had been collected by Dr. Conant, who had hoped tomake it the object of further study.

In order that this work may be made public as a continuation ofDr. Conant’s researches, his sister, Grace Wilbur Conant, has, with thecoöperation of other members of his family, made an adequate andgenerous provision for its publication.

For this gift, which is at once a contribution to science and amemorial of an able and promising investigator, lately student andfellow in this institution, the Johns Hopkins University returns itsgrateful acknowledgments.

DANIEL C. GILMAN, President.
W. K. BROOKS, Professor of Zoölogy.

[iv]

[v]

CONTENTS.