Il8 JOHNSON & STOKES 
The New Jersey sweet potato house is a stone building, 
say 16 x 18 feet on the inside, with walls 10 feet high, and a 
good roof. The building is half under ground, and the earth 
is banked up around it. There is a passage way through the 
centre, and the bins for the sweet potatoes are 6 to 8 feet 
square and 8 to io feet deep. There is a door on the south 
side, with window above, and a stove is placed inside the 
building, for use when required. The walls are plastered, 
and the under side of the roof is also covered with lath and 
plaster, and the place is thoroughly weather-proof. A house 
of this kind will afford storage room for 3,000 or more 
bushels of sweet potatoes, and will keep them in excellent 
condition, if all details receive proper attention. The re- 
quirements for successful storage are that the tubers shall 
not be too hot, nor too cold, nor too wet, and that sudden 
changes of temperature shall be avoided. The sweet potato 
crop may be said to vary from 100 to 150 bushels per acre, 
under ordinary management, with higher results under good 
conditions. 
