196 Veterinary Medicine. 



cles like peas or beans, red and angry or covered by a brownish 

 scab. Again the thickened epidermis and exudate form a hard 

 leathery covering with suppuration going on beneath, and per- 

 haps an inch in thickness. Under the desperate rubbing the 

 quick is exposed at intervals with suppuration and ulceration. 

 The advance of the disease is slow, but from the first there is loss 

 of condition, which merges into marasmus and may prove fatal. 



Diagnosis is completed by the discovery of the sarcoptes, 

 which is found beneath the scurf or crust and may not be found 

 at all in the surface layers. The pig .should be placed in a warm 

 room or in the sunshine to tempt the mite into activity, and the 

 deepest layers of the cuticle or scab taken for examination. 

 Being large the acarus may be detected with the naked eye, but 

 better with a lens or low power of the microscope. 



Treatment. The first step is to remove the scurf and scab 

 with warm soap suds and brush, preceded in bad cases by an in- 

 unction of lard for twenty-four hours or longer. This may be 

 followed by any of the anti-psoric liniments or ointments, which 

 may be reapplied every day until a cure is established. Tobacco 

 decoction (i pound to i gallon), or black hellebore (J^ pound to 

 I gallon), or stavesacre (^ pound to i gallon) proves efEective, 

 but may cau.se vomiting. Sulphur 200 parts, carbonate of potassa 

 100 parts, and lard 800 parts, is a slow but safe non-nauseating 

 application ; so is calcium .sulphide solution. If a more rapid agent 

 is wanted a little tar, oil of tar, oil of turpentine, or carbolic acid 

 may be added. 



In any case the pen and yard must be purified. A thorough 

 washing with hot water, followed by a saturation with a 5 per 

 cent, solution of carbolic acid, or a solution of chloride of lime 

 (^ lb. to I gallon) will suf&ce. The ground after it has been 

 scraped may he covered with freshly burned quicklime. 



SARCOPTIC SCABIES OF THE RABBIT. 



Sarcoptic acariasis and commensals in rabbit. S. Minor : On rabbit, and 

 slightly varying in size, on brown rat, cat and coati. S. Minor v. Cuniculi: 

 Smaller than sarcoptes of other domestic mammals ; forms one spacious 

 nest under cuticle, not channels. Attacks nose, lips, eyelids and forehead, 

 paws to elbows and hocks, rarely the intermaxilla, jaws and neck. Syinp- 



