766 
W. HERBERT LOWE. 
healthy meat production and the large dairy interests within the 
confines of New Jersey. 
But the importance of the subject does not stop here. The 
economic is only one side of the question, for the public health 
and human life itself are dependent in no small degree on 
the physical condition and the healthfulness of our domestic 
animals. 
Trichina, echinococcus, the beef and pork tapeworms, 
strongylus gigas, actinomycosis and other parasites which affect 
man come directly from domestic animals. Glanders, rabies, 
anthrax, tuberculosis and other deadly microbian diseases that 
affect the lower animals can also be communicated to the hu¬ 
man family. The closest relationship and interdependence ex¬ 
ist between communicable or infectious diseases as they appear 
in animals and in man. Certain parasites make successive ap¬ 
pearance in man and animals at different stages of their devel¬ 
opment, the same being a condition of their propagation. The 
echinococcus, the beef and pork tapeworms, and even the 
trichinae may be mentioned to illustrate this point. 
Our present knowledge would indicate that it is impossible 
for the echinococcus of the beef taenia to live in the same host, 
or in a host of the same genus in both its larva and mature con¬ 
dition. 
Man eats the meat and drinks the milk of the cow, which 
may convey the seeds of consumption to himself, for the tu¬ 
bercle bacillus of the tuberculosis found in the cow is identical 
with the germ of the human being. Recent bacteriological 
work and discoveries have thrown great light upon the cause 
and mode of transmission of infectious diseases affecting men 
and animals. Bacteriological science is but in its infancy, but 
enough has been learned to settle many problems and to deter¬ 
mine rational and practical methods in the crusade against mi¬ 
crobian and other communicable diseases. 
It is not long since we were engaged in the work of the sup¬ 
pression and extermination of pleuro-pneumonia contagiosa 
from this State and nation. It will be recalled that the disease 
