The agencies and materials concerned in the soil formation will be 

 ascertained at the Experiment Station. 



The portion of the outlined information desired from county agents 

 is as follows : 



A. Notes descriptive of the soil in place, which include : 



Depth of soil, 



Color of soil, 



Depth of subsoil. 



Color of subsoil. 



Material underlying the subsoil. 



Natural surface and drainage of area, 



Characteristic vegetation of area. 



B. Description of locality, which will enable the Experiment 

 Station to locate it on the topographical maps of the State. The 

 United States Geological Survey has published a complete series of 

 topographical maps of the State on a scale of one mile to the inch 

 and county agents will find these maps serviceable in all their field 

 work. There are from four to twelve sheets required for each county, 

 costing five cents per sheet, and they may be obtained of the Director 

 of the United States Geological Survey, Washington, D. C. 



By means of the topographical maps and the different publications 

 on the geological characteristics of different portions of the State, it 

 is expected that most of the geological information can be secured 

 for any locality. 



The laboratory investigations will include as many of the follow- 

 ing determinations as may be deemed necessary : 



Organic matter and humus. 



Plant food. 



Carbonate of lime, 



Sizes of soil particles. 

 It is not planned to make this a soil survey of the State nor a 

 substitute for a soil survey ; but to make our future soil examinations 

 after a uniform procedure, by which the results can be co-ordinated 

 and relations between one locality and another brought out, if any 

 exist. 



