The 



Journal of Heredity 



(Formerly the American Breeders' Magazine) 



Vol. VIII, No. 10 October, 1917 



CONTENTS 



A Woman with Horns 434 



America's Fighting Stocks 435 



Increase in Divorces Follows War Marriages 441 



Psychology and the War, by G. Stanley Hall 442 



Women's Separate Colleges Losing Ground 447 



Money Not Enough to Save Child Lives 447 



A Decrease in American Intelligence 447 



The Blind Cave Fish 448 



The Mastery of Nervousness (Review of a Book by Robert S. Carroll) 451 

 General Types of Superior Men (Review of a Fcok hyO. L.Schwarzj 451 

 Skunk Breeding 452 



Iowa Establishes Child Welfare Research Station 454 



Underfeeding as a Cause of Sterility 454 



The Birth Rate of Methodist Clergymen, by the Editor 455 



The Too-Perfect Milkweed 460 



Galton, a Child Prodigy 463 



Improved Wheat Produced by Ohio Station 463 



Few Women Medical College Graduates Marry 463 



Eliminating Feeblemindedness, by R. C. Punnett 464 



Cloven Hoof of Percheron 466 



A New Ancestor for the Goat 466 



English Plans to Increase Birth Rate 466 



Somatic Mutations in SunfloAvers. by T. D. A. Cockerell 467 



Decline of Germany's Birth Rate Dviring the War 470 



Origin of the Striped Cane, by A. D. Shamel 471 



Color Inheritance in Mammals; IV, the Rabbit, by Scwall Wright 473 



The Supposed Law of Compensation 475 



Color Inheritance in Mammals; V, the Guinea-Pig, by Sewall Wright 476 



The Journal of Heredity is published monthly by the American Genetic 

 Association (formerly called the American Breeders' Association) for the benefit 

 of its members. Canadian members who desire to receive it should send 25 cents 

 a year, in addition to their regular membership dues of $2, because of additional 

 postage on the magazine; foreign members pay 50 cents extra for the same 

 reason. Subscription price to non-members, $2.00 a year, foreign postage extra; 

 price of single copies. 25 cents. 



Entered as second-class matter February 24, 1915, at the postoflfice at Washing- 

 ton, D. C, under the act of August 24, 1912. Contents copyrighted 1917 by the 

 American Genetic Association. Reproduction of articles or parts of articles 

 permitted provided proper credit is given to author and to the Journal of Heredity 

 (Organ of the American Genetic Association), Washington. D. C. 

 Date of issue of this number. September 26, 1917. 



