336 Veterinary Medicine. 



by Sir Robert Carswell, it is still very prevalent, affecting it is 

 said over 90 per cent, of the rabbits. It is most destructive to 

 those that are raised or fattened in confined warrens. 



Prevention. This consists mainly in perfect cleanliness of the 

 warrens or cages. A dry wooden floor, or an impermeable con- 

 crete one, or still better an asphalte pavement is unfavorable to 

 the preservation and multiplication of the sporocysts and counter- 

 acts that repeated autoiufection which renders the disease so 

 deadly. Even these floors should be kept dry, and all faeces 

 should be frequently and thoroughly removed. The liberal use 

 of land plaster containing a small proportion of copperas is a 

 valuable precaution. It is further found that dry food like grain, 

 meal and hay is much safer than a ration of green vegetables on 

 which the coccidia often exist. 



When a rabbit warren has become infested a separation of the 

 apparently healthy should be made, and the diseased should be 

 destroyed and their internal organs burned or boiled. The in- 

 fested cages and floors may be sterilized by boiling water, or live 

 steam from a hose, or they may be sprinkled freely with a satu- 

 rated solution of copperas, or blue stone, or a solution of one part 

 of sulphuric acid in two hundred parts of water. 



Treatment has not been attempted, but it might be tried along 

 the lines of a free exhibition of salicylate of soda, hyposulphite 

 of soda, iodide of potassium, and bitters. 



PSOROSPERMOSIS IN THE DOG. 



The presence of the psorospernis in the dog's liver has been 

 recorded by Perroncito. On section the liver showed whiteish 

 yellow patches along the lines of the biliary ducts. Under the 

 microscope these were found to contain small oviform bodies with 

 thick walls and granular contents. Apart from this the lesions 

 contained caseated material consisting of granules and corpuscles 

 in a state of fatty degeneration. The resemblance to the psoros- 

 permosis of the rabbit's liver was striking, but it remained prob- 

 lematical if it was the same parasite communicated to the dog by 

 the rabbits which he had devoured. 



ACTINOMYCOSIS OF THE I,IVER. 



In damp localities where actiuomyces abounds it is by no means 

 uncommon to find it growing in the liver of cattle and swine. 



