MARKETING LIVE STOCK AND PRODUCTS 515 
horses are given a different classification. Look over 
your agricultural paper for the different classes of live 
stock at the leading market centers. 
11. Weighing when sold.—When a pen of stock is sold, 
the weighing usually follows at 
once. At each scales is a weigh- 
master, whose business it is to 
see that the weighing is accu- 
rately made. Weigh tickets, 
made in duplicate, are given to 
both the buyer and the seller, 
and the weights with the neces- 
sary data are entered in the rec- 
ord book. 
12. Inspection.— The federal | 
government, in the interest of | 
the public health, maintains a 
large inspection force to inspect | 
both live and slaughtered ani- & 
mals. This:‘inspection work is Mepium CANNERS 
done by .trained veterinarians 
who make their examination in stock ahd packing 
houses and ports of entry. At each packing establish- 
ment every carcass is inspected and tagged with the gov- 
ernment label of inspection. Diseased meat is con- 
demned and not allowed to be sold for human food. 
13. Quarantine.—In order to prevent spread of con- 
tagious diseases, quarantine regulations are prescribed 
by federal and state laws. Thus when an outbreak oc- 
curs in any state or section, quarantine regulations pre- 
vent shipments from the affected districts to other parts 
of the state or country. Such quarantine is kept in force 
until not only the disease is under control, but in many 
