300 



The Journal of Heredity 



Table III — Segregation in the seco)id generation of a cross belu'cen tzco stra'ns of 7naicc 



heterozygous for gcnnlcss seeds. 



Family 

 No. 



Total 



Normal 



200 



Germless 



Total 



128 328 



(All Seeds Norm,al) 

 814-8, -13, -15 



Calculated 

 Germless 



117.25 



143.5 



Difference 



10.75 1 6.32 



15.5 f 6.08 



Table IV — Ratios observed in segregation 

 of germless seeds in commercial varieties of 

 viaize. 



792 Fort Totten Indian Corn, 



Montana Exp. Sta 3 :1 



345 Bodwick, Montana Exp. 



Sta. 3:1 



336 South American Corn, 



Dr. D. F. Jones 15:1, 3:1 



333 Pseudo Starchy Corn, 



Dr. D. F. Jones 15:1 



344 Early Canada Flint, Mr. 



Breck 15:1, 3:1 



791 Pride of the North Yel- 

 low Dent, Isbell Seed 

 Co., Jackson, Mich.... 3:1 



451 Dulton's Flint . 63 :1, 15 :1 



311-313 Golden Bantam 63:1,15:1,3:1 



613 Luce's Favorite 15:1,3:1 



The Old American Stock 



Increase of Population in the 

 United States 1910-1930: A study 

 of changes in the population of di- 

 visions, states, counties, and rural 

 and urban areas, and in sex, color, 

 and nativity, at the fourteenth cen- 

 sus, hy William S. Rossiter. Cen- 

 sus Monographs No. 1, pp. 255. 

 Washington, D. C, 1923. 



Information contained in many large 

 volumes of the latest census has been 

 condensed into this volume, intended 

 for a more popular presentation of the 

 facts. It will be almost indispensable 

 to those interested in the population of 



this country, for it goes far beyond its 

 title, and includes comparisons on many 

 points as far back as the first census. 

 To a eugenist perhaps the most in- 

 teresting feature are the calculations at- 

 temping to determine what part of the 

 present population is descended from 

 ]:)eople who were living in the United 

 States in 1790. Briefly, it is figured 

 that perhaps 20,000,000 of the present 

 inhabitants are of absolutely pure na- 

 tive white stock, while possibly twice 

 as many more have a larger or smaller 

 amount of the same "blood." 



P. P. 



