192 



VETEEINAEY HYGIENE 



Professor Cornevin, of the Lyons Veterinary School, 

 experimentally determined the amount of yew leaves 

 required to kill an animal, which was as follows : — 



Horse, ass, and mule, 25 to 31 grains per kilo (2-2 lbs.) of body weight 

 Oxen, sheep and goats 156 to 186 „ „ „ „ „ 



Kg 46 



Fig. 52.— Yew Tree [Taxus laccata). 



Death follows so quickly, that, excepting as the result of 

 experiment, the symptoms are rarely observed. Muscular 

 tremors, especially of the croup, and frequent emission of 

 urine have been observed. In the horse a period of excite- 

 ment, followed by coma, is frequently absent, though 

 generally present in other animals. Pigs vomit, and cattle 



Digitized by Microsoft® 



