Th 



e 



Journal of Heredity 



(Formerly the American Breeders' Magazine) 



Vol. VI, No. 10 October, 1915 



CONTENTS 



Washington Navel Orange, by A. D. Shaniel 435 



Berkeley Meeting of A. G. A 445 



New Light on Eugenics, by Samuel C. Kohs 446 



Variation in Pure Lines, by C. V. Williams 452 



Apple Breeding in Idaho, by C. C. Vincent 453 



Double Seeding Petunias, by Mrs. Myrtle Shepherd Francis 456 



Heredity in the Soy Bean 461 



Hybrid Histology 461 



More Profit from Grains 461 



Oriental Immigration, by W. C. Billings 462 



Plant Breeding Problems, by C. L. Lewis 468 



Grape Breeding 470 



Protecting Pollinated Blossoms, by Dr. William S. Chapin 471 



Plant Breeding in Minnesota 472 



Why Do Apples Bloom Late? 472 



Unit Characters, by S. J. Holmes 473 



How to Make a Eugenical Family Study 476 



Illustration of Inbreeding, by D. F. Jones 477 



Production of New Cereals 479 



Plant Breeding in Alabama 479 



Reversion in Sheep, by L. L. Heller 480 



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 postof!ice at Washing- 

 ton, D. C, under the act of August 24, 1912. Contents copyrighted 1915 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 27, 1915. 



