ARTIFICIAL INCUBATIOH. 75 



them. Divide them into small lots. Feed in little 

 troughs. 



An egg-drawer two feet wide and three feet long will 

 hold one hundred and fifty eggs with an egg-turner. A 

 drawer three feet wide and four feet long holds three 

 hundred eggs. Only one drawer can be used to an in- 

 cubator. 



BROODERS. 



The principal conditions necessary in a brooder are 

 plenty of fresh air and sufficient heat to prevent the 

 chicks from crowding. We have a building here, now 

 in operation, divided into ten apartments, each apartment 

 being five by seven feet and accommodating one hun- 

 dred chicks. The building is fifty feet long and ten feet 

 wide, and a passage way running its whole length, and 

 taking up three feet of the ten, leaving the spaces for 

 the chicks seven feet. The yards are sixteen feet long 

 and five feet wide. The chicks are all brooded with a 

 stove. To describe how it is done, we will explain that 

 Fig. 46 is a box six inches deep, three feet wide, and fifty 

 feet long. Two-inch iron pipes are arranged as shown 

 in the illustration, the top of the box being removed to 

 show the interior. The hot water may be supplied by 

 an ordinary stove " water back," or by a coil of pipe in 

 a stove. This is heated by a piece of pipe one inch in 

 diameter, coiled in a stove, holes being cut in the stove for 

 the purpose of admitting pipes. The hot water flows out 

 and the cold water flows in. The floor of the box is made 

 close, with tongued and grooved boards. The cold air 

 enters through tubes reaching to the outside of the build- 

 ing. It is heated by coming in contact with the pipes, 

 and enters into the tubes on the top of the floor, which 

 are two and a half inches high. Over these tubes aro 



