174 BULLETIN 1059, U. S. DEPARTMENT OF AGRICULTURE. 



Summary of forest conditions affecting reproduction or the special tree under 

 observation, as to shading, exhaustion of soil moisture, influence of herba- 

 ceous vegetation, underbrush, etc 



Description of the special tree under observation as to size .growth, vigor, and 

 reproductive capacity ; 



SOIL CHARACTER AXD MOISTURE SUPPLY. 



Depth of litter Character 



Depth of humus Present moisture = 



Penetration of humus in mineral soil as shown by color, inches 



Character of subsoil, distinguished from soil :_. 



Total depth of soil permeable to roots, inches 



Amount and kind of rock fragments in soil '. 



Character of impermeable substratum 



Soil origin (in situ, colluvial, alluvial, or eolian, and from what rocks). 



Composition and class 



Drainage Present moisture 



REFERENCES. 



Maps 



Reports = 



Photographs 



Environmental conditions measured 



Moisture samples Samples for analysis. 



Soil analyses filed 



Observations by (date) 



