Fig. 4. The Purdue Experiment Station poultry farm 



Note the growing crops on the land in the yards. One year 

 old fruit trees are growing between the sets of corn rows. This 

 system allows natural conditions for the fowls, and so egg produc- 

 tion, fertility and hatchability are increased. By using orchards 

 and cultivated fields no land need be especially set aside for poultry. 

 Growing corn furnishes splendid shade. 



Fig. 5. Continuous house with small yards 



An undesirable method of yarding, because the range for the 

 fowls is restricted, soil contamination increased and labor more ex- 

 pensive. 



