SALESMAN AND CUSTOMER 265 
are found for example in Colombia, at Barran- 
quilla, Savanilla, Santa Marta, and along the 
seaboard. It is unwise to send mail in care of 
the General Delivery. Later on after you 
have been over the territory and established 
friendly relations with some dealer or mer 
chant, mail may be sent in his care. 
Passports are unnecessary in Latin America. 
Funds should be carried in the form of Let 
ters of Credit. It is wise to take one of these 
in Dollars and Cents and the other in Pounds 
Sterling, as there will be many opportunities 
to use one of these advantageously in selling 
exchange when the other cannot be so em 
ployed. This all depends of course on the 
local demands for foreign exchange, and be 
fore buying money, it is wise to ascertain 
which letter of credit can be used more profit 
ably. The saving which can be made in the 
course of a long trip in closely watching the 
price of money and buying when conditions 
favor you, is worthy of your best attention.