OUTLINE OF CHAPTER XIV. 



FARM ANIMALS. 



E. A TROWKKIDGK, 

 Animal liitshandry. ('nivnsi/y of Missouii. 



^.— (iENERAL PRINCIPLES. 



I. Early History. 

 II. Improvement. 



III. Heredity. 



IV. Variation. 



1. Atavism. 



2. Ordinary Variation. 



3. F.xti ao) dinary Variation. 



V. Selection. 



1. Natural Selection. 



2. Artificial Selection. 



VI. Functions of Animals Under Natural 



Conditions. 

 VII. Changes Wrought by Man. 

 VIII. Relation of Form and Function. 



7A— HORSES. 

 I. Light Horses. 



1. Type. 



2. Breeds. 



II. Coach-Horses. 



1. Type. 



2. J-lrreds. 



III. Draft-Horses. 



1. Type. 



2 . Breeds. 



C— CATTLE. 



I. Beef-Cattle. 



1 . 'Type. 



2. Breeds. 



391 



