Show PROPER CARE OF INCUBATOR practice of pennsylvania school to regulate temperature before put ting eggs in machine A constant temperature temper aturo Is essential in the incubator tile tho practice at the pennsylvania school of agriculture and experiment station Is to regulate the tempera turo carefully before the eggs are placed in the machine the regulator should not bo be disturbed atter after that time any further adjustment I 1 of the temperature should be made by Igi Vering ilia lie flauio flame of the lamp por for the first week the should bo be to degrees for tho the second week about degrees and beginning with the third week and continuing to tho the end of the hatch to am degrees these temperatures hold good when tho the center of tho the bulb of the thermometer la Is about isa 1 inches above tho ilia bottom botto m of tile egg tray |