VPage 101, Life History, Ascaris SuILLA. 
The Ascaridae lay their eggs in the intestines, 
where the ripe eggs hatch. The larvae issuing from 
these eggs enter the body of the pig, migrate to the 
liver, spleen, lungs and other organs, and finally from 
the lungs to the alimentary tract by way of the air 
passages through the trachea and into the esophagus, 
during which migration they undergo structural 
changes and increase in size. 
Page 107, Treatment, Oxyuris CurvuLa and O. 
MASTIGODES. 
18 cc. oil chenopodium followed in two hours by 
one quart of raw linseed oil. 
i tae 134 (insert in middle of page at end of discus- 
sion of thrombo-embolic colic). 
PROPHYLACTIC.—Sanitation must be looked after. 
The proper disposal of feces from infested animals 
is essential to the eradication of the parasites. Eggs 
or larvae of most parasitic invasions pass out to the 
outer world in the manure, hence the proper disposal 
of the manure is the first prophylactic attack. The 
fact that our animals eat off the ground, graze, drink 
surface water and in the case of hogs root constantly, 
exposes them to the possibility of danger of getting 
contaminated feed or water. Since the deposits of 
feces is wherever the animal may be, the prevention 
of this condition is for the most part impossible. The 
prevention of parasitic infestations as a result of this 
condition is a matter that calls for repeated treatment 
with suitable and adequate anthelmintics where the 
animals are known to be constantly exposed to dan- 
ger. While the deposits on pastures is not a thing 
that can be readily controlled, the manures from the 
barns and other buildings where animals are housed 
can be more or less controlled. If animals were kept 
in confinement and fed from racks and water from 
