280 DADD'S VETERINARY MEDICINE AND SURGERY. 



peared on the second; the pustules themselves preceded the in- 

 flammation some days. This man had not been in contact with 

 any cow, but on the 11th of February he had shod a horse suffer- 

 ing from grease. There existed, at the time, numerous crack 1 , 

 about the hands. The disease from which the horse was suffering 

 was certified by a -qualified veterinarian. Various inoculations 

 were practiced with the liquid taken from the pustules presented 



ly B , with the effect of reproducing the same disease. The 



most perfect set of experiments were made hv M. Maunoury, who 

 transmitted the virus through four sets of cases. The following 

 are the results of his observations : 



1. That virus obtained from the hands of the farrier B , 



and inoculated on the arm of an infant, produced a full pustule, 

 having all the character of ° vaccine pustule — form, evolution, 

 termination. 



2. That lymph taken from this pustule, and inoculated on the 

 arm of three persons, had produced identical pustules, which are 

 truly vaccine. 



3. That the transmission of the virus by successive generations 

 has not diminished the intensity of the force of the poison. One 

 of the set of cases presented large pustules, depressed in the centei , 

 and filled with matter; each pustule served for several inocu- 

 lations and the charging of several sets of glasses. 



4. That from these facts it is evident that the virus taken from 

 the pustules of the farrier was identical with the vaccine." * 



Surfeit. 



The term surfeit is used to designate an eruptive affection of 

 the skin, which usually makes its appearance very suddenly. 

 There is nothing dangerous about it, and it sometimes disappears, 

 in the course of a few hours, without any medical treatment. It 

 usually appears in warm weather, and especially among hcrses 

 that are in a state of j)lethora, from the use of a large quantity 

 of meal, or what is known as cut feed. 



Symptoms. — A horse may be taken out of the stable apparently 

 in perfect health, except that he is fat, and, after being driven a 



•Oenerales de Medecine, April, 1857 pp. 365 398, frrm the British and For- 

 eign Medical Chiurgical Review. 



