GOVERNMENTAL INSPECTION 201 
BIOLOGIC SUPERVISION. 
157. Biologic Products. In modern therapeusis 
and prophylaxis, both for man and beast, various 
biologic products have become of very great im- 
portance. The peculiar nature of these substances 
readily offers itself as a means for working great 
harm, as well as great good. Through accidental 
infections they have already caused many deaths 
of human beings, and have caused the nation tre- 
mendous financial losses by the introduction and 
spread of animal diseases. To safeguard the pub- 
lic as much as possible the federal government 
has seen fit to exact licenses from all those engaged 
in the manufacture of such articles designed for 
interstate traffic, and under the license system 
to supervise the processes of manufacture. This 
is in charge of the Public Health Service of the 
Treasury Department, but the services of veteri- 
narians is required in the examination of animals 
used for this purpose. The manufacture is con- 
ducted under the strictest surgical technique, and 
every operation is safeguarded as much as pos- 
sible. 
158. Governmental Responsibility. The gov- 
ernment does not guarantee the purity of the prod- 
uct. Neither did the label ‘‘Guaranteed under the 
U. S. Pure Food and Drugs Act’’ mean that the 
government guaranteed the contents of the pack- 
age. That label simply meant that under the pro- 
visions of that act the maker guaranteed the gen- 
uineness of his product as marked. In point of fact 
many manufacturers and dealers have been prose- 
cuted by the government because they attempted 
