Harvesting and Storage 



303 



lies in special fanning and ventilating devices which 

 are provided and in the more uniform distribution of 

 heat secured by means of special conduction pipes which 

 may be run to each bin and controlled by dampers. The 

 detail construction and operation of these various patent 

 houses embrace a study too exhaustive and technical to 

 be taken up here. Full descriptions and information 

 covering operation may be secured from the various 

 construction companies. 



Banking. 



Although the scientifically reflated storage-house 

 already described is 

 now recognized as the 

 only safe way to keep 

 sweet potatoes, it will 

 no doubt be many 

 years before all grow- 

 ers provide themselves 

 with these houses. If 

 potatoes are to be 

 banked (see Fig. 31), 

 the very best methods 

 should be used in or- 

 der to offset as far as 



possible the many dis- -p^^^^ 3i_a long pile of pota- 

 advantages which will toes to be covered with straw and 

 , , . -J. „j! dirt. A very poor method of bank- 



be present m spite ol ;„g potatoes. 



all that can be done. 



Thompson ^ has very ably given the disadvantage of 



storage in pits and at the same time explained how these 



1 Farmers' Bull. 970, pp. 24-5-6. 



