3 2 



DISEASES OF THE DOMESTIC ANIMALS 



dress. The loss from vaccination is about one-half of i per cent., 

 while that 'from black leg is about 10 per cent, of deaths from all 

 other -diseases in calves. No operation should be performed before 

 or until two weeks after vaccination — -as spaying, branding, castra- 

 ting or - dehorning. 



Vaccination is done two to three weeks before the prevalent 

 black leg season begins. Pregnant animals 'must not be vaccinated 

 within one month of parturition. 



Boils — Furuncles. 



A boil is an acute circumscribed inflammation about a skin 

 gland or hair follicle. It is caused .by the entrance of pus-forming 

 cocci from (usually) without, due 'to pressure, friction and scratch- 

 ing, and -so occurs in chafing — as by harness — -and in -skin diseases, 

 as eczema and mange. Conditions of debility associated with 

 anemia appear to favor the occurrence and - continuance of boils. 

 Boils may be aborted by shaving the hair from them and touching 

 them with pure carbolic acid or painting them with 20 per cent, solu- 

 tion of silver nitrate, or with tincture of iodine, or repeated coats 

 of collodion. Also _ by the injection of a few drops of 2: per cent, 

 carbolic acid solution. If abortion of the boil is unsuccessful, a 

 toothpick ■ dipped in carbolic acid -may be thrust -into the central 

 opening or, if this is not easy, the boil may be punctured -with a 

 scalpel dipped in pure carbolic. Afterward an ointment containing 

 carbolic acid — ras carboli-zed vaseline — or pure iodoform may be 

 employed to- dress the remaining ulcer. 



Cauterizing it with silver nitrate stick and dressing with 

 Peruvian balsam- and creolin (1-10, Friedberger) 'is also remedial. 

 Poultices are not advisable, as they favor the occurrence of, a crop 

 of boils ' by spreading 1 the infection. 



Many internal remedies have been recommended, as calcium 

 sulphide (D., gr.y^y 2 ; H., gr. xx-xxx three. times daily), sodium 

 sulphite (H., 'g-ss-i; T>., gr. xv-xx thrice daily), :and ordinary 



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