448 History of Animal Plagues. 



ing; the pulse is frequent; the heat and the fever become in- 

 tensified. It is now that it ceases to eat and to ruminate. The 

 disease prevails during some days; the fever augments from day 

 to day; the veins (?) beat with a force and a quickness which is 

 astonishing ; a gluey foam runs from the nostrils and the mouth 

 of the creature; the tongue is hot; the breath is heavy and 

 gurgling, and its odour is insupportable ; the eyes are buried in 

 their orbits; the horns become cold ; a diarrhoea of a bad odour, 

 and sometimes tinged with blood, and a thorough total sinking, 

 terminate the beast's days. This diarrhoea does not always take 

 place. 



2. 



'When we open the cattle after death, we find the lungs con- 

 stantly and infalHbly attacked. We might know this from the 

 cough and the difficulty of breathing which precedes death. In 

 all the contagions which have reigned at Sulens, Grandson, 

 at Grassy, and elsewhere, the lungs have always been inflamed 

 and attached to the pleurae, and an aposteme often formed be- 

 tween the lungs and this membrane. I find the same observation 

 in the best authorities who have written on the contagion, and 

 particularly in the writings of M. Bourgelat, who has made the 

 curing of these animals a particular study. In many cows the 

 lungs are found gangrenous; in others they are filled with 

 abscesses ; and in others, again, there are vesicles filled with water 

 mixed sometimes with pus; it is more rare to find tartarized or 

 cretaceous matter. There is constantly inflammation and gan- 

 grene in the pleura, and we have never yet killed infected animals 

 and found the lungs in the natural state. The cough being the 

 first symptom of this disease, it is present in every animal affected. 

 The lungs being constantly altered, it is clear that the disease of 

 these is the essence of-the contagion, and that it is with perfect 

 justice the people term it, both in France and Germany, pneumo- 

 nia. The alterations in the other viscera are not so essential as 

 those in the lungs. It is common, nevertheless, to find the 

 stomach inflamed and gorged with food. It is scarcely altered 

 when the animals are killed shortly after the commencement of the 

 disease; but when they have been slaughtered in the last stages. 



