August 6, iai5] 



SCIENCE 



179 



Professor Prentiss was a member of the 

 Society of Naturalists, the Society of Zoolo- 

 gists and the Association of Anatomists. He 

 was the author of many papers presenting the 

 results of his own investigations in the fields 

 of zoology and anatomy among the more im- 

 portant of which may be mentioned: 



1. "The Otooyst of Decapod Crustacea," Bull. 

 Mus. Comp. Zool., 1901. 



This was his thesis for the doctorate and was a 

 well-rounded piece of histological and physiological 

 work. 



2. " Polydaotylism in Man and the Domestic Ani- 

 mals," Bull. Mus. Comp. Zool., 1903. 



3. "The Neurofibrillar Structure in the Ganglia 

 of the Leech and Crayfish with Especial Eefer- 

 ence to the Neurone Theory," Jour. Comp. 

 Neur., 1903. 



4. "The Nervous Structures in the Palate of the 

 Frog," Jour. Comp. Neur., 1904. 



5. "The Development of the Hypoglossal Ganglia 

 of Pig Embryos," Jour. Comp. Neur., 1910. 



6. ' ' The Development of the Membrana Tectoria 

 with Reference to its Structure and Attach- 

 ments," Amer. Jour. Anat., 1913. 



Dr. Prentiss's " Text-book of Embryology " 

 published in January, 1915, less than sis 

 months before his death, met at once with a 

 very favorable reception. It is an example of 

 text-book-making at its very best. The wealth 

 of excellent illustrations and the clear concise 

 text make it indispensable for the student of 

 embryology. In it there are also may contribu- 

 tions of an original character not published 



Professor Prentiss's scientific work was char- 

 acterized by a scrupulous attention to detail 

 and by the perfection of his technical methods. 

 He handled with great success and on difficult 

 material the most delicate of neurological 

 methods — the methylene blue stain. His dex- 

 terity was shown again in remarkable dissec- 

 tions of embryos, drawings from which appear 

 in his book. He brought to all his work an 

 unusually clear mind and a keen insight into 

 fundamental problems. 



Eeticent, almost shy, by nature, and pre- 

 vented by the condition of his health from often 

 joining his colleagues at the regular Christmas 

 meetings Dr. Prentiss was intimately known 



to only a chosen few. To them he was en- 

 deared by reason of his unfailing good humor, 

 generous motives and loyalty to high ideals and 

 to his friends. Admired and respected by 

 all conscientious students and loved by those 

 who came into close contact with him, 

 he helped greatly toward the establishment of 

 high standards of scholarship and manhood in 

 the student body. 



In his death we lose a comrade whom we 

 esteemed most highly, a generous and faith- 

 ful friend. 



S. Walter Hanson 



Chicago, 



June 24, 1915 



FBATEBNITAS MEDICOBUM 



The foUowing appeal has been addressed by 

 the distinguished committee whose names are 

 appended to members of the medical profession. 

 Every physician is entitled to membership in 

 the Brotherhood (Fraternitas Medicorum = 

 F.M.) ; there is no fee attached to this member- 

 ship. However, in order to be able to main- 

 tain the organization, distribution of appro- 

 priate literature, etc., voluntary contributions 

 will be welcome. Enrollment of membership 

 as well as contributions are to be sent to The 

 Medical Brotherhood, care of Dr. S. J. Meltzer, 

 13 West 121st Street, New York City. 



To the men and women engaged in medical 

 practise and the advancement of the medical 

 sciences. 



The present horrible war among civilized 

 nations has brought out impressively certain 

 sad facts; that although there are civilized 

 individual nations, we are still very far from 

 having a civilized humanity — there is an abyss 

 between intranational and ini emotional moral- 

 ity; that, no matter how cultured and enlight- 

 ened nations may be, they still settle their 

 international differences by brute force, by 

 maiming and killing their adversaries; and, 

 finally, that the present high development of 

 science and invention in individual nations 

 only serves to make the results of this war 

 more destructive than any other in history. 



