EGGS IN COLD STORAGE. 45 



refrigeration originated in Europe, and has found 

 favor to some extent on this side of the water, three 

 houses known to the writer being- operated on this 

 system. Mr. E. H. Johnson describes the apparatus 

 used in cooling, purifying and circulating the air on 

 page 96 of the February, 1898, issue of Ice and Refrig- 

 eration. This consists essentially of a tank containing 

 brine, which is cooled by direct expansion piping. 

 Slowly revolving in the tank, with a portion of their 

 surface exposed above the surface of the brine, are 

 large metallic disks. A fan causes the air to circu- 



late rapidly over the brine moistened surfaces of the 

 disks, and the moisture is extracted, and impurities 

 and odors absorbed by the cold brine. In a modifica- 

 tion of this apparatus the direct expansion coils do the 

 cooling and take the place of the disks as well. The 

 coils are exposed to the air circulation, and the brine is 

 pumped over them in a shower, a shallow pan or tank 

 being provided under coils as a reservoir and recep- 

 tacle for the brine the same brine flowing over coils 

 again and again. It has been claimed for this system 

 that almost any product can be stored in different 

 rooms, all of which were fed by the same air circuit 

 and cooling apparatus, without any injury to the most 

 sensitive. A statement of this kind must first be 



