60 HARVESTING, STORING, AND MARKETING 



Cellar storages are commonly constructed in a bank with 

 access on the exposed ends, or at one side (Fig. 32) . The walls 

 may be of stone, concrete, brick, hollow tile, etc. Such walls, 

 especially where exposed, may be further insulated with hair, 

 felt, granulated cork, sawdust, shavings, etc. Drains should 

 be placed at the back of the walls and should have proper 

 outlets. 



Ventilation should be provided through large doors, prefer- 

 ably one on each end. It has been found by the Pennsylvania 

 Station that ventilation ducts and outlets are not so efficient 

 as large doors and windows. An earth floor is best, with a false 

 wood rack floor on top, to promote ventilation and care for 

 the humidity requirements. Cross-pieces should not be placed 

 at right angles to the movement of the air under such a floor 

 as they will interfere with circulation. A concrete floor may 

 be used but will often require sprinkling to keep the air suffi- 

 ciently moist. 



Often such a cellar forms the basement of a building, the 

 upper floor of which is used for packing and the storage of 

 packages. The roof construction over the cellar should pro- 

 vide insulation. 



A properly insulated common storage above ground should 

 give results as good as or better than a cellar storage (Fig. 33). 

 This is because the former is not influenced by ground tem- 

 peratures to the extent that the cellar is, and the grower can 

 control conditions better. 



Many types of construction and various materials have 

 given satisfaction for storages above ground. Wood con- 

 struction with proper insulation is both economical and effi- 

 cient. Of course, it does not reduce the fire hazard as much 

 as other types of construction. 



Studding 2 by 6 inches covered with matched siding sheeted 

 with building paper will provide a 6-inch insulation space 

 between the studding. Granulated cork or cork dust is excel- 

 lent insulating material and is not expensive. For ordinary 

 temperatures, such as are experienced in southern New York 



