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MAMMALIA. 
2nd. Inspect carefully the pork, if possible, with a microscope ; 
3rd. Cook most thoroughly every piece of pork, bacon, ham, &c., 
before use. 
The experiments which have been made to determine the 
amount of cooking that is necessary to destroy the trichines 
give the following results : 
1st. The trichines are killed in hams by a protracted salting, or, 
in sausages by subjecting them to strong smoking, continued for 
twenty- four hours. 2nd. They resist ordinary smoking for three 
days ; if prolonged, however, it appears to destroy them. 3rd. Cook- 
ing pork by boiling is not certain to kill them, unless performed 
most thoroughly. 
The Wart Hogs ( Phascochcerus , F. Cuvier), which much resemble 
the true Hogs, are distinguished from them by the structure of 
their molar teeth. A fleshy excrescence hangs down on each side 
of their cheeks, which gives them a repulsive appearance. There 
are several species to be found in Africa, of which country they 
are natives. They are very courageous, and possessed of immense 
strength. Their habits are similar to those of the Wild Boar. 
The Cape Wart Hog, found at the Cape of Good Hope, is probably 
the best known. Specimens of it are generally to be seen at the 
Regent’ s Park Gardens, London. 
The Peccaries (. Dicotyles , F. Cuv.) are animals which are peculiar 
to America. They resemble the common Pig in their general 
Fig. 45 ' The White-lipped Peccary {D. labiatus ). 
shape and in their teeth, but their canine tusks do not project 
from the mouth. They are devoid of tail, and are provided 
with a gland opening on the back, from which a penetrating 
