DIVISION AND SPECIALIZATION 155 



original material and as to the dominant agen- 

 cies operating in the formation of the soils 

 themselves. 



These in turn have been subdivided primarily 

 into more than seven hundred soil types, be- 

 yond which the subdivisions are almost infinite 

 in number. 



For the reader who is interested in the tech- 

 nical as well as practical discussion of this sub- 

 ject in detail, Bulletin 78, Bureau of Soils, 

 "The Use of Soils East of the Great Plains 

 Region," is available through the Department 

 of Agriculture; and separate pamphlets de- 

 scribing each soil type are being issued as the 

 work progresses. 



This is pure science. What is its practical 

 application to the economics of American 

 agriculture? How does it affect the fortunes 

 of the Farmer of To-morrow? 



By the aid of pure science we are manufac- 

 turing tradition the tool of the European 

 farmer in pill form, so to speak. We do not 

 stop with the classification of soils according 

 to geology and meteorology. At this point 

 the investigation would be without value to 

 the man behind the plow. When the soil ex- 

 perts bore a three-foot hole in an acre and assay 



