188 



CAMPBELL'S SOIL CULTURE MANUAL 



heavy rain and harrowing had been done and a second rain 

 .should come, it may he necessary to harrow again. The 

 great effort should be to get the foliage of the grain to cover 





Harvesting Wheat Fifty Years Ago. 



the soil, while the surface is still loose, in order that there 

 may be free access of air to the firm soil. Above all things 



