VETERINARY SCIENCE. 69 



with carbolic acid solution, and allow the pens to remain 

 vacant for at least six months. The same feeder should 

 not attend the well and the sick hogs unless his shoes are 

 changed after each visit to the sick hogs. The bodies of 

 the dead hogs should be thrown into a rubbish heap and 

 burned; but if this cannot be easily carried out, a long, deep 

 trench should be dug, and when the carcases are thrown 

 into it they should be covered with a layer of quicklime and 

 at least six inches of earth. When the disease has spent 

 itself or has been effaced, the entire mass in the trench 

 should be covered with six inches of quicklime and at least 

 six feet of earth. The place selected for the burial of 

 the hogs should not drain towards a stream, and it would 

 be better to fence it. The dead hogs should never be drawn 

 over the ground, and the wagon used should be washed 

 with a disinfectant. 



During the last few years the sertirn treatment of swine 

 plague and hog cholera has been introduced experimentally 

 by the Bureau of Animal Industry of the U. S. Dept. of 

 Agriculture. Although the results so far obtained are very 

 promising, further studies are required before the efficacy 

 and practicability of the method can be considered proved. 

 Farmers whose hogs are attacked by hog cholera, or who 

 fear such an attack, should at once communicate with the 

 Bureau or with the State authorities and ascertain what 

 assistance can be had. 



DIRECTIONS FOR MAKING TUBERCULIN TESTS. 



Animals must be kept in as nearly a normal condition as 

 possible during the test. Before injection take four tempera- 

 tures, about two hours apart. Inject in the evening at about nine 

 o'clock; begin taking temperatures eight to ten hours after the in- 

 jection and continue until at least five temperatures, two hours 

 apart, have been taken. In case an animal shows an abnormally 

 high temperature at the end of this period continue taking 

 temperatures until a decided drop toward the normal is noted. 



A rise of 2 to 2.5 deg. F. above the average normal body tem- 

 perature, maintained for several hours, is considered a positive 



