36 



The Sweet Potato 



FiQUEE 4. — A portable out- 

 door evaporator to be heated 

 by an ordinary stove. 



largely supplemented by preservaition in the modem 

 farm storage-houses. Many special devices for evapo- 

 rating fruits and vege- 

 tables are on the market 

 which can be used eco- 

 nomically for sweet pota- 

 toes. Desiccated sweet 

 potatoes prepared in 

 much the same way as 

 desiccated white potatoes 

 are now sold to some ex- 

 tent in everyday com- 

 merce.^ 



For meeting the needs 

 of the ordinary family, there are a considerable number 

 of small driers, both patented and unpatented, intended 



to be operated 

 over the cook- 

 stove and in con- 

 nection with the 

 usual routine of 

 the kitchen.^ 

 Very simple dry- 

 ing devices may 

 be made at home 

 by providing sin- 

 gle racks or trays 

 made of wire 

 cloth secured to 



FiGUKE 5. — A home-made drier con- 

 structed of sheet iron in operation over a 

 small stove. 



1 Bull. 468, U. S. Dept. Agr., page 20-; Bull. 71, S. C. Exp. Sta., 

 1903, page 6; Farmers' Bull. 169, U. S. Dept. Agr., 1903, page 25. 



2 For full description of various types of driers, see Farmers' 

 Bull. 984, U. S. Dept. Agr. 



