40 



The Journal of Heredity 



the Angus bull, Quoman of Tierra Alta 

 248048. This bull was used for several 

 years at the head of the College herd 

 of Angus. During the five years that 

 he was in service he sired thirty-five 

 calves out of pure-bred Angus cows, 

 one out of a grade Shorthorn, and 

 three out of grade Jerseys. All of the 

 thirty-nine calves sired by this bull 

 were black. The dam of Quoman's 

 Perfection, Belle Perfection 46th 

 493840, a Hereford cow, has produced 

 four pure bred Hereford calves, all 

 normal in color. As this cow did not 

 "nick" well with the Hereford herd 

 bull, and as steers were so valuable for 

 class work, it was decided to cross 

 breed this cow with a bull that would 

 be more likely to "nick" with her par- 

 ticular type for the production of a 

 more desirable type of steer. 



On the arrival of the calf, October 

 28, 1 92 1, the little fellow instead of 

 being black bodied with white face 

 (the color so common in this cross) 

 was red bodied with white face. It was 

 at first thought that there had been a 

 mistake in the mating. By referring 

 to the breeding records, however, it 

 was found that the cow was mated with 

 the Angus bull. Upon close examina- 

 tion of the calf it was found that he 

 had a dark muzzle and a dark tongue 



which partially established the fact 

 that his sire must be the Angus bull. 

 As he matured the horns failed to make 

 their appearance, a typical poll head 

 developed, and the cylindrical turn of 

 the body, so characteristic of the An- 

 gus, became more evident. There can 

 be no mistake as to the steer being an 

 Angus-Hereford hybrid. The three 

 dominant characters usually so evident 

 in a cross of this kind are the poll 

 head, white face, and the black body. 

 The first two characters named have 

 bred true in this particular case, but 

 how about the red color of the body 

 coat ? 



Although Quoman of Tierra Alta 

 has never sired a red calf in the thirty- 

 nine matings referred to above, he must 

 undoubtedly be heterozygous for coat 

 color. In this particular mating a 

 male gamete bearing the red color has 

 undoubtedly fertilized the female red 

 gamete and the calf, Quoman's Perfec- 

 tion, is the result of the homozygous 

 zygote. 



According to figures given in Wis- 

 consin Experiment Station Bulletin 

 No. 213, dealing with the inheritance 

 of the red color in the black breeds of 

 cattle, 2.61 per cent of the Angus re- 

 corded in Vols. 18 to 27 inclusive are 

 heterozygous for red. 



Books Received 



A Study of American Intelligence, by Carl C. Brigham. Princeton University 



Press, Princeton, N. J. 1923. 

 A Racial History of Man, by Roland B. Dixon. Charles Scribner's Sons, New 



York. 1923. 

 Man and Culture, by Clark Wissler. Thomas Y. Crowell Co., New York. 



1923. 

 Human Traits and Their Social Significance, bv Irwin Edman. Houghton, 



Mufflin Co., Boston. 1921. 

 Signs of Sanity, by Stewart Paton. Charles Scribner's Sons, New York. 



1922. 



