THE QUESTION OF SUPPLIES 407 



letters were being ignored by the main office in another 

 city. " Probably behind on their orders for machines 

 and giving every ounce of strength to them " was the 

 New York manager's explanation of the unpleasant 

 facts. 



Incubator thermometers and hygrometers have been 

 the subjects of much wear and tear of gray matter on 

 the part of manufacturers. One manufacturer, who 

 believes himself singularly immune from the error germ, 

 avers that none of the (other) hygrometers made for in- 

 cubators have much value. One of the newer makes 

 of incubator thermometers has the mercury bulb set in 

 the middle of a celluloid egg, where it is guaranteed to 

 give the exact temperature at the center of the real 

 eggs, in any make of incubator, and no matter what 

 the method of heating : by diffusion, radiation, or what 

 not. 



The supply houses talk a bit about many defective 

 regulators on machines. I have not found trouble of 

 this sort, in using four different makes. I am inclined to 

 think such difficulty may come from carelessness, where 

 the regulator is on the top of the machine. It might 

 possibly come, in certain machines, through gross over- 

 heating of the machine. 



An egg cabinet and turner supplied with a wire 

 pocket for each egg, and holding, as to size, from 

 fifteen dozen to eighty-four dozen is a very handy 

 appliance. The eggs can be rotated at will through 

 a one-half turn of the swinging body portion. 



There are cheap egg testers, usually at twenty-five 

 cents in the stores or thirty-five cents by mail. An 

 electric tester is also offered. It is said to give a much 



