MKMOIR OF CAMPER. 
57 
they were sphacelated, as the external appearances 
indicated, but I could discover no cause of disease 
tn any of the internal viscera.” 
One other proof of Camper’s zeal as an agricultu- 
rist, and we have done with him in this useful and 
honourable character. 
During some years, the calves which went to pas- 
l^ure were attacked with cough, &c,, which gradually 
got Worse, and terminated in destroying the animal 
"'ith intense suffering. The disease was uniformly 
fetal. A thousand head w^ere cut off in the neigh- 
hourhood of Groningen in a short time by this dis- 
without the cause being discovered, or any 
efficient remedy suggested. 
“ To inquire if any thing could be attempted for 
its removal, I went,” says Camper, “ to visit one of 
Illy acquaintances, who, of fifty calves, lost, in the 
ttionth of August, more than thirty, in a meadow 
"’here they fed along with many cows, heifers, horses, 
ei'eop, &c. not one of which, however, was affected. 
Dn the 2d of September, I examined one of the car- 
trasses, and found the digestive organs were all sound. 
Dn opening the chest with great care, 1 found it was 
<ln>te free from inflammation. I then removed the 
tongue and windpipe, and scarcely had I opened the 
gullet when I discovered millions of worms. They 
"'ot'e from an inch and a half to two inches long, 
"'kite and slender. I tracetl them down the wind- 
P'POj and found myriads of them in the proper sub- 
stance of the lungs. In another individual, I found 
