284 PROGRESSIVE POULTRY CULTURE 



local conditions and the purpose and convenience of 

 the manager. 



At least one leguminous crop should be included in 

 the course of the rotation. For instance, in the case 

 just given, clover may be grown with the grass or in 

 some localities alfalfa may take the place of the grass. 

 After cropping grass three years in succession the poul- 

 try flocks are colonized upon the grass. 'If it suits the 

 manager to grow less grass and more wheat or other 

 grain he may crop two years' grass and grow two years' 

 grain, sowing grass seed with the second sowing of 

 grain. If more corn is wanted this crop may have two 

 years of the seven in each field and grass or grain be 

 left out one year. Instead of growing twenty acres of 

 potatoes each year the manager may prefer to substi- 

 tute root crops, cabbages and other vegetable crops for 

 tha potatoes or a part of them. 



Using colony houses, each to accommodate fifty fowls 

 and placing them about one hundred and fifty feet 

 apart eacy way, forty houses on twenty acres, will 

 provide for two thousand fowls. 



The colony houses may be placed upon runners made 

 of timber four inches by six inches placed edgewise 

 under the sills and extending about one foot beyond the 

 sides of the house. The projecting ends of the run- 

 ners may be rounded underneath like sled runners so 

 that ihey will slip forward readily over the ground. 



Another plan is to place the houses upon axles sup- 

 ported by small thick wheels or a low truck may be 

 used, each house being placed upon it, in turn, for mov- 

 ing to a new location. 



If the climate should be so severe in winter as to 

 prevent adopting the colonizing system in the fields 

 throughout the year, the houses may be brought close 

 together near the farmstead or where they will have the 

 benefit of natural or artificial shelter and where it will 

 be convenient to care for their inmates. 



SPECIAL MANAGEMENT 



This is decidedly an age of specializing in business. 



