SELLING AGENCIES 179 
in certain district exchanges. These all combined to 
form a large selling organization. In this way one man 
becomes the manager of the organization, handles all 
the business and has before him information from all 
the different parts of the country regarding both the 
markets and the production. He is able to control to a 
Fig. 109—COMMON METHOD OF COMBINING LOCAL ASSOCIA- 
TIONS INTO A CENTRAL ORGANIZATION 
large extent the output, and so places it as to avoid com- 
peting against each other and thereby getting a better 
price. 
The Management of Exchanges.—The history of co- 
operative organizations among farmers is prolific of a 
wonderful amount of experimental work coupled with 
considerable loss and a great many failures. It has been 
