20$ 



EGG FARM. 



Fig. 124, the birds will naturally withdraw their heads, 

 the doors being raised gently and gradually. 



The construction of the doors is as follows ; The 

 board, d, Figs. 123 and 124, is of equal width at both 

 ends and the tapering board, c,'is nailed to it firmly. 



FIG. 100. TRANSVERSE SECTION OF FIGURE 99. 



This board, c, is protected at e by a bolt or pin, so that 

 d and c both rise together when the cord, i, is pulled. 

 At/ 1 , g, there is a slot cut in the board, d, to enable it to 

 be raised or lowered without being stopped by the pin, e. 

 A flat, horseshoe-shaped piece of iron, /, g, is attached 



