42 Instructions to Field Parties. 



IV. Physiography and Geology (500 words). « 

 V. Soils (500 words to each type).'' 



Name, description, depth, and color of soil and subsoil.'' 

 Location of soil in area. 

 Topographic features. 

 Drainage features. 



Origin of soil and processes of formation. 

 Mineral or chemical features. Alkali salts. 

 Unusual or characteristic crops to which adapted. 

 Crops grown and average yields. 

 YI. Special Soil Problems, such as Hardpan, Acid Soils, Reclamation of 



Swamp and Worn-out lands (100 words). 

 YII. Water Supply for Irrigation, Amount and Character (250 words). 

 VIII. Underground and Seepage Waters, Drainage of Soils (250 words). 

 IX. Alkali in Soils (1,000 words). h 

 Location of alkali areas. 

 Origin of alkali. 



Chemical composition of alkali. 

 Distribution in soil. 

 Reclamation of alkali lands. 

 X. Agricultural Methods in Use as Adapted to the Soils and Conditions of 



the Area. 

 XL Agricultural Conditions in the Area (1,500 words). & 

 General prosperity of farming class. 

 Tenure of farms. 

 General size of farms, 

 (character of labor. 

 Character of principal products. 

 Recognition of adaptation of soili; to crops. 

 , Transportation facilities. 

 Markets. 



a The physiography should be described in some detail; the geology should 

 be briefly treated, only those features having a direct or important bearing on 

 the soils being considered. Authorities for statements made sliould be cited 

 whenever possible. 



/'In j)reparing Chapters V, IX, and XI write in the subtopics and discuss 

 each in tlie order given. This will aid in securing uniformity in the report.s, 

 and prevent the omission of matter important in making comparisons of the 

 soils and conditions in different areas. 



cThe greatest care should Ik- taken to make the descriptions of the soils, 

 while full enough to be clear, concise and explicit. 



