184 



THE HOOK OF BUTTER 



lated concrete. The iiisulatimi makes it possible better 

 to retain the cohi ; and the concrete, liesides being a sub- 

 stantial building material, is sanitary. Fig. 54 shows 

 a butter-room in a modern cold storage warehouse. The 

 business of operating a cold storage plant is largely one 

 of renting space. This space is leased to the customer, 

 w ho usually draws out the product wdien it is needed to 

 supply his trade. Sometimes goods are placed in storage 



Fig. 54. — Sct-tioii i>f liuttt-r Ht.i>r;i^e roDiii in ;i niodrru iiix-proof cold 

 storapo warehouse. The temperature is nraintained steadily at zero 

 Fahrenheit. 



on spccidatiou and may all be sold and taken away at 

 one time. The cold storage comi)aiiies issue receipts 

 that are negotiable. Very often the refrigerating com- 

 pany acts as a c'ommission merchant for its customers. 

 This is probable when the holder of the storage goods 

 lives in a distant part of the country. Some cold storage 

 warehouses are locatcfl in the ilistrict where the btitter 

 is maTUifactured. Occasionally they may be on the route 

 of transit from the district of production to that of 



