CONTENTS. 



PAGE 



General Intkoduction ..... i 



(1) Zebra Hybrids. (2) The Principles of Breeding— 

 ((0 Reversion in Pigeons, Fowls, Dogs, Rabbits, 

 Ducks, and Horses ; (b) Prepotency and In- 

 breeding. (3) Telegouy. (4) Saturation. (5) 

 Sterility in Equine Hybrids. 



PA.RT I. 



A. The Birth of a Hybrid between a Burchell's Zebra 



and a Mare ...... 1 



(This paper is reprinted with a few verbal 

 alterations from The Veterinarian for November, 



1896.) 



B. Zebra- horse Hybrids .23 



(This paper is reprinted from Tlie Zoologlat for 

 February, 1898.) 



PART II. 

 Telegony and Reversion . . .53 



(This paper in an abridged form was published 

 in The Veterinarian, November and December, 

 1897, and February, 1898.) 



APPENDIX. 

 Telegony ...... 165 



(Reprinted from The Veterinarian, April and 



May, 1895.) 



