4 BULLETIN L206, U. S. DEPARTMENT OF AGRICULTURE. 
STORAGE FACILITIES. 
( OMMERCIAL CUBING AND STORAGE HOUSES. 
A Lengthening of the marketing season lias been brought about in 
recent years by the development and greatly increased construction 
of suitable storage houses, in which curing is effected under heat and 
ventilation. 3 The construction of these houses in the South, most of 
which have been built since 1017, not only reduced the enormous 
winch resulted from improper storing in earth banks and pits, 
but has tended to prevent market gluts at harvest time. They have 
been factors in the increase of commercial supplies, and have made it 
possible to distribute the crop oxer a Longer period of time. Figure 3 
shows the Location of 1,406 commercial houses, as determined in a 
survey made in L922 by the United States Department of Agriculture 
in cooperation with State colleges of agriculture and State depart- 
ments <»f agriculture. 
Fig. 3. — Commercial sweet-potato storage houses with a combined capacity of nearly 11 ,000,000 bushels. 
ts one house. The locations of these houses in the South indicate the large area 
adapted to commercial production. 
Houses with capacities of 2,000 bushels or more are classified as 
commercial, those under 2,000 bushels as farm houses or houses that 
store primarily for home consumption. This classification is prob- 
ably correct for 90 per cent of the houses in each group. Of the total 
number 242 are located in the northeastern section, 1,087 in the 
southern section, and 77 in the producing districts of eight other 
Static. The combined capacity of these houses is 10,819,4X7 bushels, 
which exceeds the quantity entering into the annual car-lot movement. 
STORAGE FACILITIES IN THE NORTHEAST. 
In the four State- of the northeastern section the combined capacity 
of the 242 bouses i- 2,j207,137 bushels. More than half of this is in 
two counties in Delaware -Sussex and Kent. The remaining facih- 
rtment of Agriculture, Farmers' Bulletin 970: Sweet-Potato Storage, by 
B.C. Thopsomn. I 
