214 Bulletin 246. 



1 piece hardware cloth, {" mesh, 6" x 6" @ 5 cts $0.05 



1 gal. paint @ $1.75 1.75 



2 yds. oil-cloth @ 30 cts .60 



I box carpet tacks .02 



Thermometer .50 



Heater complete* 10 . 00 



Total cost of material $32 . 46 



Cost of constructing, (two carpenters one day) 5 • 00 



* 



Total cost of building $37 . 46 



Price of lock, hinges and sash adjusters includes screws. 



Above prices show the actual cost of materials and labor in Ithaca and will, of course, vary in dif- 

 ferent localities. 



Heater includes all metal parts shown on Plate i except filling can. The heaters for use at this 

 station are made by local tinsmiths, whose names and addresses are herewith given. * Plate i is a 

 working plan by the aid of which any good tinner should be able to construct the heater. 



* Made by Treman, King & Co., Ithaca, N. Y., and L. R. Lewis, Cortland, N. Y. 



V. Operation of the Brooder-House. 



To operate this house in January and February weather requires 

 about half a gallon of gasoline per day, costing at the present rate of 15 

 cents per gallon, less than seven cents per day. During the warmer 

 weather, April and May, the cost is much less, as low sometimes as two 

 cents per day to brood the 200 chickens. The cost to operate the house 

 for a period of 293/^ days, together with figures showing the thermometer 

 readings taken both outside, inside at the front of the house, and under 

 the hover, is shown by Figs. 76 and yy, and Table I. Page 176. 



The brooder is run for the first week or ten days so that the ther- 

 mometer, located as mentioned above, gives a reading of 90° F., at the 

 same time the thermometers placed under other parts of the hover would 

 show a range of temperature from 90° to 103° F., thus making it possible 

 for the chicks to get almost any degree of temperature from 60 out in 

 the room, to 103 under the hover. 



Fig. 74, shows how the tank is filled from the rear of the house. 

 The burner should always be turned out and the wheel valve closed 

 while the tank is being filled. To light the burner, open the wheel valve 

 (W. W., Fig. 74), and the control valve (Fig. 67), and allow the gasoline 

 to almost fill the generating cup, then close. Light the gasoline and 

 allow it to burn out. Open the control valve and hold a lighted match 

 over the top of the burner. This will give a bright blue, cone-shaped 

 flame which should never be turned so high as to show red. Regulate 

 to the desired temperature with the control valve. 



There is no danger whatsoever in operating a gasoline burner pro- 

 vided ordinary care is exercised. The common points of error often 

 resulting disastrously are: (a) allowing too much gasoline to run into 



