INTERNAL CAUSES OF VARIATION 219 



TELEGONY (DISPROVED). By J. C. Ewart. Popular Science Monthly, 



LVII, 126-133- 

 TELEGONY (DISPROVED) : ACCOUNT OF EWART'S EXPERIMENT WITH 



ZEBROIDS. By J. C. Ewart. Breeders' Gazette, XLI, 1009; also in 



Transactions of the Highland Agricultural Society, 1901, pp. 81-134 ; 



and in Experiment Station Record, XI, 1077; XIII, 275 ; and XIV, 



76. 

 TELEGONY (DISPROVED) : EXPERIMENT WITH GUINEA PIGS. By C. S. 



Minot. Report of the British Association for the Advancement of 



Science, 1906, p. 606. 

 THE CHROMOSOMES IN HEREDITY. By W. S. Sutton (1903). Biological 



Bulletin, IV. 



THE GERM PLASM. By A. Weismann. i vol. 

 THE PHYSICAL BASIS OF HEREDITY. By K. H. Eigenmann. Popular 



Science Monthly, LXI, 32-44. 

 THEORY OF HEREDITY AND TELEGONY. By J. C. Ewart. Nature, LX, 



330-333- 



XENIA, EXAMPLE IN APPLE. By L. H. Bailey. Science, IV, 498-499. 

 XENIA, OR DOUBLE FERTILIZATION. (Review of work of De Vries, 



Correns, and Webber.) Experiment Station Record, XII, 421, 717; 



also XIII, 620. 

 XENIA IN MAIZE. By Hugo De Vries. Experiment Station Record, XI, 



1016. 



