PART I. 



General Principles of Veterinary Medicine. 



CHAPTER I. 



EEMARKS ON THE A:N^AT0MY AND PHYSIOLOGY OF 



DOMESTIC ANIMALS. 



The Brain and Nervous System — The Organs of Breathing — 

 The Organs of Digestion — The Heart, Blood-vessels and 

 Absorbents — The Kidneys and Sex Organs — The Repro- 

 ductive Acts. 



"When one undertakes to repair a machine he should know 

 something about its construction; and in like manner an 

 acquaintance with anatomy and physiology is justly deemed 

 necessary to the proper treatment of diseases. 



It is not, however, our purpose to enter into those abstruse 

 sciences to any great extent ; but it will be profitable to con- 

 sider in broad outlines, and in language free from technicali- 

 ties, the structure and functions of the four species of ani- 

 mals, the horse, cattle, the sheep and the hog, whose 

 diseases it is our main purpose to describe in the pages of 

 this book. In doing so we shall proceed in the same order 

 in which the diseases tliemselves will be classified when Wf 

 oome in turn to study them. 



(17) * 



