EGGS IN COLD STORAGE. 



27 



In making- observation in a storage room, the psy- 

 chrometer should be held as far as convenient from 

 the body, and toward the direction from which the 

 circulation comes the observer standing- to the lee- 

 ward, as it were. In some cases it is necessary, or 

 advisable, to step slowly back and forth a few steps, 

 and the observer should turn his head from the di- 

 rection of the psychrometer, so his breath will not 

 affect the reading. In reading- a thermometer, read 

 as quickly as possible, and do not allow the breath to 

 strike the bulb. It is a common practice with the 

 writer to hold his breath while reading a thermome- 

 ter. It is unnecessary to caution ag-ainst allowing- the 

 psychrometer to strike any object while whirling*. 

 In case it should, the observer will have $5 worth of 

 experience, but no psychrometer. 



RELATIVE HUMIDITY, PER CENT. 



The above short table needs no explanation fur- 

 ther than has been already given. It will cover any 

 case in egg room observations. This table was not 

 intended for cold storag-e work, being- a part of the 

 regular humidity tables published by the Weather 

 Bureau. The full set of tables can be had by 



table 



