History of Animal Plagues. 435 



'On the third day the disease is at its height, and perfectly de- 

 veloped bv reason of the augmentation of all the foregoing 

 symptoms: the cough is more frequent and harassing; the re- 

 spiration is very laborious; the beating of the flanks greatly 

 quickened ; a frothy saliva dribbles in an abundant stream from 

 the mouth; the pituitary membrane is excoriated and pufibd up 

 in such a wav as to prevent the passage of air into the nasal 

 cavities; the parts at the back of the mouth are highly inflamed ; 

 a spumous yellow matter flows from the nostrils; the rumination 

 is performed at a longer or shorter interval than in health; the 

 excretion of faecal matters and of urine is considerably re- 

 tarded; the milk is thicker and yellower; the appetite always 

 more depraved ; the blood black and thick. 



' On the fourth day, the disease being in its last stage, all the 

 parts which were before so hot are now cold ; this change comes 

 on in such a wav that the extremities of the horns and the ears 

 exhibit it first, the cold insensibly creeping towards the roots of 

 these parts; the animal shivers, and there can be observed, par- 

 ticularly along the sides and the flanks, horripilation everywhere 

 over the paiiniculus cariiosiis ; the pulse is scarcely perceptible ; 

 continual moans are emitted ; respiration is greatly impeded ; 

 the pituitary membrane is gangrenous; the discharge from the 

 nostrils is thin, fetid, and tinged with blood; the eyes are bleared 

 and nearly always closed; all the excretions are interrupted, and 

 the faeces from the rectum have an insupportable odour; the milk 

 is very thick, rusty, and ichorous; the cough is heard no more; no 

 appetite, no rumination ; lastly, mortification and a colliquative 

 diarrhoea, which succeeds rapidly to the shivering, announces 

 the end of the animal, who dies without any violent eflbrt on 

 the fourth, or at the latest the fifth, day of the disease/ ^ The 

 causes could not be positively ascertained. 



In Italy an epizooty amongst cattle. ' In 1770 a contagious 

 malady appeared in the bovine species, but did not extend 

 beyond the towns of Gognano and Costa, in the district and 

 province of Rovigo. The disease consisted in a diarrhcea, the 

 discharges being coniposed of a greenish matter often mixed with 



^ Bourgelat. Mcmoire dc 1770. 



