Memoirs from the Biological Laboratory OF THE JOHNS HOPKINS UNIVERSITY IV, 1 WILLIAM K. BROOKS, EDITOR THE CUBOMEDUSÆ A DISSERTATION PRESENTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY, IN THE JOHNS HOPKINS UNIVERSITY, 1897 BY FRANKLIN STORY CONANT A MEMORIAL VOLUME BALTIMORE THE JOHNS HOPKINS PRESS 1898 PRINTED BY The Lord Baltimore Press THE FRIEDENWALD COMPANY BALTIMORE, MD., U. S. A. [Illustration: With the kind regards of Franklin Story Conant. THE HELIOTYPE PRINTING CO. BOSTON] FRANKLIN STORY CONANT SEPTEMBER 21, 1870--SEPTEMBER 13, 1897 A BIOGRAPHICAL SKETCH This Treatise is printed after the author’s death, as a Memorial by his friends, fellow-students and instructors, with the aid of the Johns Hopkins University. It consists of his Dissertation, reprinted from the copy which was accepted by this University at his examination for the degree of Doctor of Philosophy in June, 1897. As he had made many notes on the embryology of the Cubomedusæ, and had hoped to complete and publish them together with an account of physiological experiments with these medusæ, he had described the Dissertation on the title-page as Part I, Systematic and Anatomical, and he went to Jamaica immediately after his examination to continue his studies and to procure new material, and he there lost his life. * * * * * Franklin Story Conant was born in Boston on September 21, 1870, and he died in Boston on September 13, 1897, a few days after his arrival from Jamaica, where he had contracted yellow fever through self-sacrificing devotion to others. He was educated in the public schools of New England; at the University of South Carolina; at Williams College, where he received the degree of Bachelor of Arts in 1893; and in the Johns Hopkins University, where he received the degree of Doctor of Philosophy in 1897, and where he was appointed a Fellow in 1896 and Adam T. Bruce Fellow in 1897. Most of his instructors have told us that they quickly discovered that Conant was a young man of unusual intelligence and energy and uprightness, and as his education progressed he secured the esteem and the affectionate interest of all who had him in charge, so that they continued to watch his career with increasing pride and satisfaction.