Shepherd Haynes, chief scientific aide, then places the eggs in an automatic incubator for a period of seven days, 1/19/38

Removed again from the incubator the eggs are put in individual wire baskets and placed in the hatcher by Mr. Haynes, 1/19/38

George Attick, junior poultry aide, removes the hen and eggs from the trap nest. The eggs are then marked to correspond with the number on the leg band of the hen. From here on the egg is checked through until the hen or rooster is full grown, 1/19/38

Dr. Charles W. Knox, senior poultry geneticist, inspects the newly hatched chicks preparatory to banding them, 1/19/38

Superior chickens set. After removal from the incubator the eggs are put through the candling test by Mr. Haynes. Those infertile are given to charity while the fertile ones follow through the scientific routine with an additional ten days in the incubator, 1/19/38

Life begins: Baby chicks see the first light of day as they are hatched from the pedigreed eggs, 1/19/38

Superior chickens set. Douglas Grinnan, scientific aide, assisted by Benjamin Nehr, is shown fertilizing a hen to begin the experiments, 1/19/38

Air conditioned hen house is latest. Washington, D.C., Aug. 9. Biddy increases the production of eggs in an air-conditioned hen house, U.S. Department of Agriculture experts have discovered after extensive experiments. The first temperature controlled maternity ward for hens has just been put into o

Hams. Placing the ham in the incubator, Mr. Carroll sets the heat at the required temperature for the aging *Abstract/medium:; 4 x 5 in. or smaller