400 MR. A. D. BARTLETT ON HYBRID BOVINE ANIMALS. [June 3, 



I will endeavour, by the aid of the pedigree before you, to explain 

 the order or manner in which they were produced. 



Pedigree of Hybrid Bovines. 



Zebu 6 Gayal $. 



A. Female Hybrid (Zebu x Gayal) 

 Born Oct. 29, 1808. 



Bison. 



" 8 



B. Female Hybrid (Zebu X Gayal x Bison) 



Born May 21, 1881. 6 2 6 



Bison. 



6 



C. Female Hybrid 



Born March 12, 1884. 



. (Zebu X Gayal X Bison X Bison). 

 6 $ 6 6 



In the first place, the bull Zebu (Bos indicus) was introduced to 

 the cow Gayal (Bibos frontalis), and a female hybrid was born 

 Oct. 29, 186S (A of pedigree). This animal (A) produced her first 

 calf June 1G, 1872, a second one Oct. 16, 1873, a third one Jan. 5, 

 1875, a fourth March 11, 1876, a fifth Nov. 2, 1878; these five 

 calves were the produce of this female hybrid Gayal with the Zebu 

 bull. She was now introduced to the male American Bison (Bison 

 americanus), and on the 21st of May 1881 she produced a female 

 No. 2 (B of pedigree). 



It will be seen that this animal (B)is the produce not only by the 

 intermixture of three well-marked species, but, according to our 

 present definition, of three distinct genera. 



This remarkable animal, the result of the triple alliance (Plate 

 XXXIV.), was last year introduced to the bull Bison, and on the 

 12th of March, 1884, she produced a female (C of pedigree). This 

 last individual, now eleven weeks old (Plate XXXV.), is undistin- 

 guishable from a pure-bred Bison of the same age. 



Having placed before you the facts of the wonderful fertility of 

 this hybrid race, and the remarkable display of what I think may 

 be called the plastic properties that are capable of producing by 

 artificial selection a variety of races, I think I may venture to say 

 that the hybrid Gayal and Zebu would have bred with any true 

 bovine animal. 



For many years I have carefully considered the subject of hybrid 

 animals, having a strong suspicion that some of our domestic animals 

 (for the origin of which our most able observers fail to fully account) 



