further information in this connection get Dominion Bulletins, No. 20, entitled " The 

 Use of Ice on the Farm,'' and Xo. 23, entitled " Cold Storages and the Cold Storage 

 Act," furnished free by the Dairy and Cold Storage Commissioner, Ottawa, Ontario. 



GRAVITY BKINE REFRIGERATION. 



With this system crushed ice is melted in a primary tank by adding salt, which 

 process takes up heat rapidly from coils of brine placed in the tank and connected 

 with coils in the storage-chambers below. The cooling starts the brine circulating 

 in the coils, and the cold brine is continually removing the heat from the storage- 

 room below. Any desirable temperature down to about S Fahr. may be obtained 

 by regulating the melting of the ice by increasing or decreasing the amount of 

 salt that is used in the primary tank. Very even temperatures are obtained, and 

 this feature, together with the possibility of low temperatures, gives the system all 



36" 





Fig. 3. Diagram of a home-made refrigerator or ice-chest. 



the advantages of a mechanical refrigerating plant. Its cost makes it adaptable 

 to small farm storages as well as larger commercial plants. The system is covered 

 with patents. (See publication "Cold," published at Calcium, X.Y.) ; 



