78 



MAKING POULTRY PAY 



fowls would therefore use about six hours a day in 

 determining how many eggs each hen was laying. 



One of the best non-patented devices for keeping 

 ■egg records is that used at the Maine experiment sta- 

 tion and illustrated in Figure 27. In one of the views is 

 shown the interior workings of the device, and in the 

 other the completed nest. It is a box-like structure, 

 without front end or cover, twent3'-eight inches long, 

 thirteen inches wide and thirteen inches deep, inside 

 measurements. A division board with a circular open- 



FIG. 27 — MAINE TRAP NESTS 



iing seven and one-half inches in diameter is placed 

 across the box twelve inches from the back end and 

 fifteen inches from the front end. The back section is 

 the nest proper. Instead of a close door at the entrance, 

 a light frame is covered with wire netting. The door 

 is ten and one-half inches wide and ten inches high 

 and does not fill the entire entrance, a good margin 

 ■being left all round to avoid friction. It is hinged at 

 the top and opens up into the box. The hinges are 

 placed on the front of the door. The trip consists of 



