SCIENCE 



Friday, August 6, 1915 



CONTENTS 

 Experimental and Chemical Studies of the 

 Blood with an Appeal for more Extended 

 Chemical Training for the Biological and 

 Medical Investigator: Professor John J. 

 Abel 165 



Charles William Prentiss: S. Walter Eanson. 178 



Fratemitas Medicorum 179 



The Production of Radium in Colorado 184 



Scientific 1< otes and News 185 



University and Educational News 186 



Discussion and Correspondence: — 



Losing the Advantages of the Binomial Sys- 

 tem of Nomenclature: Dr. Willard G. Van 

 Name. American Sanitation: De. Wm. T. 

 Carpenter. Animal Malformations: Dr. 

 D. S. Lamb. The Long Cost of War: Chan- 

 cellor David Starr Jordan 187 



Scientific BooTcs: — 



Brues and Melander's Key to the Families 

 of North American Insects: PKorEssOR T. 



D. A. COCKERELL 190 



On the Acoustics of the Chapel of Adelhert 

 College: Professor Frank P. "Whitman.. . 191 



Special Articles: — 



Two Color Mutations of Bats which show 

 Partial Coupling: Professor W. E. Castle 

 AND Sewall Wright. Toxicity and Mal- 

 nutrition: De. Eodney H. True 193 



MSS. intended for publication and books, etc., intended for 

 review should be sent to Professor J. McKeeu Cattell, Garrison- 

 On-Hudson. N. Y. 



EXPERIMENTAL AND CHEMICAL STUDIES 

 OF THE BLOOD WITH AN APPEAL FOB 

 MOBE EXTENDED CHEMICAL TRAIN- 

 ING FOB THE BIOLOGICAL AND 

 MEDICAL INVESTIGATOR. II 



THE BLOOD AND THE SPECIFIC SECRETORY 



PRODUCTS OP THE ORGANS OP 



INTERNAL SECRETION 



In this field we touch on the one hand 

 upon knowledge which is deeply rooted in 

 the earliest practical experience of man- 

 kind, and on the other on the results of 

 epoch-making clinical observations and of 

 experimentation in scientific laboratories 

 up to the present moment. Man has long 

 made practical use of the fact that the re- 

 moval of the sex glands at a certain age will 

 give us the docile ox in place of the unruly 

 bull, the easily fattened and tender-fleshed 

 capon for the muscular and stringy cock; 

 and human society in its various stages 

 of development has also practised this muti- 

 lation on its individuals for various rea- 

 sons, religious, economic or penal. The sale 

 of eunuchs in Bagirmi and other parts of 

 North Central Africa still continues, we 

 are told, and it was only on the accession 

 of Pope Leo XIII. in 1878 that the practise 

 of castrating boys in order to furnish the 

 Sistine Choir its famous adult soprano 

 voices was discontinued. 



From remote antiquity, therefore, man 

 has known that the gonads, or sex glands, 

 exert a marked influence on the develop- 

 ment and structure of the body, but until 

 recent times there has existed no valid ex- 

 planation, no correct theory of their rela- 

 tionship to the rest of the body. It is true, 

 there were not wanting acute minds whose 

 attempted explanation came close to the 



