V 
CONTENTS 
Mathematics. — Quaternions and Their Generalizations By L. E. Dickson 109 
Zoology. — Novocains as a Substitute for Curare . . By J. F. Fulton, Jr. 114 
Physics. — Note on a Method of Determining the Distribution of Pore 
Sizes in a Porous Material By E. W. Washburn 115 
Physics. — An Apparent Case of Non-Mendeuan Inheritance in Datura 
Due to a Disease By A. F. Blakeslee 116 
Physiology. — The Effect of a Variation in Milling on the Digestibility 
of Wheat Flours By C. F. Langworthy and A. D. Holmes 119 
Mathematics. — The Mathematical Theory of the Apportionment of 
Representatives . . . By E. V. Huntington 123 
Genetics. — Current Maps of the Location of the Mutant Genes of Dro- 
sophila Melanogaster By C. B. Bridges 127 
