44 EGGS IN COLD STORAGE. 



room. In any other position, they are only useful as a 

 "talking* point," as it is likely to impress a prospective 

 customer favorably with the cooling- power of a refrig- 

 erator, to allow him to stand for a few seconds in the 

 breeze created by one of these higii-speed fans. The 

 use of electric fans has been adopted to an extent not 

 warranted by the results possible to attain with them, 

 and their use will no doubt be gradually discontinued 

 as the fallacy of the idea becomes apparent. 

 Primitive The first svstem of true forced circulation to con- 



torccQ a, ir * 



circulation. s ider is not illustrated and needs no sketch to explain 

 the working- of it, as there are practically no distribut- 

 ing- air ducts, the cold air being- forced into the room 

 at two or three larg-e opening's, and taken out in the 

 same way. There are two prominent houses using 

 an air system constructed on these lines, one having 

 the cold air inlet near floor and warm air outlet near 

 ceiling-, the other having both cold and warm air open- 

 ings near ceiling. No distribution of circulating air 

 of any consequence is provided, the idea being simply 

 to cool the room by forcing in air which has been 

 cooled by coming in contact with cooling pipes located 

 outside of the rooms. The cold air is taken in at one 

 extremity of room and the warm air out at the other, 

 or the cold air is taken in at ends of room and warm 

 air out at center, or the reverse. This is what may 

 be called a primitive form of forced circulation, and is 

 quite similar to the systems of indirect steam heating 

 as first employed. It needs no argument to show that 

 a room equipped in this way has varying degrees of 

 temperature, humidity and circulation, depending on 

 the remoteness or proximity to the direct route be- 

 tween cold air inlet and warm air outlet the air mov- 

 ing through the area of least resistance, which is 

 usually along the center alley of room. 



Linde-British Fig. 7 shows the arrangement of ducts for air 



air-circulation 3 . 



system. circulation used in the Linde-British air system; a a, 



cold air ducts; b b, warm air duct. This system of 



