46 BULUETIN L206, U. S. DEPARTMENT OF AGRICULTURE. 
Owners or operators of commercial storage houses should buy or 
should accepl for storage for the grower's account only sweet potatoes 
thai are free from disease, in proper condition for storing, and that 
conform to grade requirements. They should cooperate with growers 
in bringing about improvements in growing, harvesting, and field 
grading. Grading and handling at the storage house should he 
closely supervisee!, and any unnecessary waste of space, products, 
and labor should he eliminated. Any new houses erected should he 
on the track side and should he sufficiently large to make economical 
operation possible. In some instances storage costs per bushel may 
be reduced, and other advantages may result, from operating several 
houses under one management. 
Shippers should study market conditions and should develop their 
sales policies accordingly. They should prepare or accept for ship- 
ment only well-graded, well-packed, disease-free sweet potatoes. 
These should he loaded in standard containers. Brands should be 
developed, advertised, and their integrity maintained. Every detail 
of selling and shipping should be handled in a manner to invite con- 
fidence and attract buyers. The adoption of efficient methods and 
practices in the producing sections should not only reduce -the cost 
of marketing, hut should make it possible for shippers to distribute 
the supply in the quantity and condition desired and at the time and 
place of greatest demand. 
