342 



THE APPLE 



The Nyce system. In this system the cooling effect of melting 

 ice and the drying and purifying effect of chloride of calcium are 

 depended upon to produce the desired result. It is an overhead 

 ice system, but the air is not circulated from the ice chamber into 

 the storage room. The air of the storage room is cooled by con- 

 tact with the metallic ceiling, which also forms the floor of the ice 

 chamber. To absorb the moisture which is given off by the fruit 

 and is admitted by the opening of doors, the well-known drying 



Fig. 152. Exterior of a good farm storage 



On the farm of George Smith, South River, New Jersey. (Courtesy of Madison Cooper, 

 Calcium, New York) 



qualities of chloride of calcium are used. The results obtained in 

 this way are quite satisfactory and compare favorably with those 

 of any of the other ice systems in general use. 



The Jackson system. The Jackson system of cold storage is 

 one of the most commonly used, and is quite simple. It is, of 

 course, an overhead ice system, with air circulating from the ice 

 chamber down into the storage room. The spaces between the 

 joists supporting the ice are left open, and aprons of galvanized 

 iron protect the girders which support the joists and conduct the 

 drip to the removable pans. In some cases cylindrical tubes or 



