EGGS IN COLD STORAGE. 49 



system is very small. Storage men will at once ap- 

 preciate that a saving- of even 5 per cent in space adds 

 that much to the profits of the season's business, as 

 it is as expensive to cool vacant space as it is to cool it 

 when occupied by goods. 



As an objection to the forced circulation system, g. fans 

 it has been urged that the expense of running fans 

 continuously for handling the air was so large as to 

 be a serious item of expense. With a well constructed 

 apparatus and a large light weight fan wheel running 

 at a slow speed, the air in a room containing 15,000 

 cubic feet, which will store about 5,000 cases of eggs, 

 may be circulated with an expenditure of effort not 

 exceeding one-half a horse power. 



The selection of a fan for propelling the air is of 

 considerable moment when installing an air circulat- 

 ing system in a cold storage room. Fans also play an 

 important part in handling air for ^ventilating, and the 

 merits of the different kinds and forms of fans will be 

 discussed under "ventilation." 



