or less closely. It is very important that the thermometer used is absolutely correct, 

 and should be tested before setting the machine. Most druggists or opticians will 

 test thermometers free, or for a nominal sum. 



The incubator should be started a few days before the eggs are to be placed in 

 the egg-chamber, so that a temperature of 103 degrees may be readily maintained. 

 The temperature which the thermometer should register, however, depends somewhat 

 upon its position in the iucubating-chamber. The eggs should not be placed in the 

 incubator until a fairly uniform temperature has been maintained. An important 

 factor which has to do with the maintaining of a uniform temperature is the flame. 

 The wick of the incubator-lamp should be trimmed in such a manner as to give a 

 broad, even flame, the corners of which are slightly rounded. When the wick is In 

 use it should be trimmed in the following manner: With the fingers rub off the 

 charred portion carefully, and light. If an even flame does not show as the wick is 

 turned up, remedy the defect, and then round off the corners of the wick so that no 

 smoking will result. 



Small colony houses in use at the Oregon Agricultural College, Corvallis. Ore. The writer 

 would substitute cloth or glass for the hinged board shutters, preferably one of each kind. 



Most of the large hatching establishments do not commence to turn eggs till 

 the evening of the third day. The eggs require to be turned often. The purpose 

 of turning them is to prevent the embryo in the egg from sticking to the shell, for 

 should this occur growth would be stopped. It is still an open question whether 

 turning eggs twice daily during incubation is sufficient. It is known that the hen 

 turns the eggs more than this number of times, some having been observed to con- 

 tinually turn the eggs. However, most authorities on the subject advise twice daily. 

 Where good results are obtained from this procedure, it would be unwise to depart 

 therefrom. 



Regarding the use of moisture, experiments have proved that where moisture 

 has been supplied the chicks are generally larger and more vigorous. As to the 

 exact or proper amount of moisture to use, this is a very difficult question to answer 

 satisfactorily. However, it is generally conceded that to be of use the moisture needs 



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