TV*** AmPfimn TV pi t*i i i*Jrll ist 

 X lie Jr\.L I let lvcii 1 iiavuiaiioi 



A Monthly Journal. e.tablUhed in 1867. Devoted to the Advancement of the Biological Science* 

 with Special Reference to the Factors of Organic Evolution and Heredity 



CONTENTS OF DECEMBER NUMBER 



I. The Men ^ eli |°^f ^^^y^^p^i 7 111 the 



VI. IndeitoVolun^XLVlT' 



1L Vertical Distribution of the Chsetognatha of 

 the San Diego Region in Relation tothe : Ques- 

 tion of Isolation v$. Coincidence. Ellis L. 

 IIL A Famfly of Spotted Negroes. Q. I. Simpson 



IV. The Effect of Fertilizers on Variation in Corn 

 and Beans. Professor J. K. Shaw. 



CONTENTS OF THE FEBRUARY NUMBER 



Adaptions In Animal Reactions. Professor G. H. 

 ^ e Bic|tagical^ 



EL. Castn^tionl^Eelation to the Secondary Sexual 

 IV NT rl ^d E 'L C t i e 8 rature Some Recent Advances 



Alpheas^HyaU an^ h^Principlea of Research. Dr. 

 Shorter^Artic^aDd DiKnMion^Here<ii1ty in a Par- 



CONTENT8 OF THE MAY NUMBER 



Nat Nicotiana. Richard Wellington. 



Shorter Articles and Discussion : ^toplifi^i Mendel^ 



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THE SCIENCE PRESS 



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