Campbell's 1907 

 Soil Culture Manual 



A Complete Guide to Scientific Agriculture as 

 Adapted to the Semi-Arid Regions. 



BY 

 H. W. CAMPBELL. 



The proper fitting of the Soil for the Conservation 

 and Control of Moisture and the Development 

 of Soil Fertility; How Moisture Moves in the Soil 

 by Capillary Attraction, Percolation and Evapor- 

 ation; the Relation of Water and Air to Plant 

 Growth, and how this may be Regulated by 

 Cultivation. :::::::::::: 



EIGHTH THOUSAND. 



PRICE $2.50 

 THE CAMPBELL SOIL CULTURE Co. (INC.) 



Lincoln, Nebr. 

 U. S. A. 



