MEMOIR OF CAMPER. 57 



they were sphacelated, as the external appearances 

 indicated, but 1 could discover no cause of disease 

 in 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- 

 ture were attacked with cough, &c., which gradually 

 got worse, and terminated in destroying the animal 

 with intense suffering. The disease was uniformly 

 fatal. A thousand head were cut off in the neigh- 

 bourhood of Groningen in a short time by this dis- 

 ease, 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 

 my acquaintances, who, of fifty calves, lost, in the 

 month of August, more than thirty, in a meadow 

 where they fed along with many cows, heifers, horses, 

 sheep, &c. not one of which, however, was affected. 

 On the 2d of September, I examined one of the car- 

 casses, and found the digestive organs were all sound. 

 On opening the chest with great care, I found it was 

 quite free from inflammation, I then removed the 

 tongue and windpipe, and scarcely had I opened the 

 gullet when I discovered millions of worms. They 

 were from an inch and a half to two inches long, 

 white and slender. I traced them down the wind- 

 pipe, and found myriads of them in the proper sub- 

 stance of the lungs. In another individual, I founj 



