THE BLOOD. 



231 



In the healthy horse we can distinctly feel the intermax- 

 illary glands, in the healthy ox the precrural glands, and no 

 others; if any of the other glands are distinctly palpa- 

 ble we assume that they are e n 1 a r g e d . 



The intermaxillary lymphatic glands 

 of the horse are sometimes extirpated in 

 order to subject them to a special macroscopical, or microscop- 

 ical and bacteriological examination. For diagnostic purposes 

 we resort to it in glanders only. We operate on the standing 

 animal and anesthetize according to Schleich's method. 



15. The Blood. 



The examination of the blood is of importance in a few 

 rare cases only. A microscopical examination to determine 



Fig. 54. 



Leucemic Blood. 



the presence of certain infectious diseases is of value only in 

 anthrax and Rothlauf in pigs, and even in these diseases the 

 circulating blood contains only few organisms. However, i n 

 T e X a s fever it is of diagnostic importance, and in con- 

 stitutional blood diseases it is equally invaluable. 



The best way to obtain the necessary blood is to make a 

 sHght incision into the lip, with the point of a knife, observing 



