LITERATURE CITED 



Burroughs, E. R., Jr. 



1967. Design and installation of a study to determine the effect 

 of multiple logging roads on the soil mantle hydrology of a 

 spruce-fir forest. Unpublished M.S. thesis on file at 

 Montana State University, Bozeman. 



Koshi, P. T. 



1966. Soil-moisture measurement by the neutron method in 

 rocky wildland soils. Soil Sci. Soc. Amer. Proc. Vol. 30, p. 

 282-284. 



Marston, R. B. 



1965. Volumes of field soil and of water measured by subsurface 

 nuclear probes. USDA Forest Serv. Res. Note CS-32, 6 p. 

 North Central Forest Exp. Sta., St. Paul, Minn. 55101. 



Merriam, R. A. 



1962. Useful statistical guides and graphs for neutron probe soil 

 moisture sampling. USDA Forest Serv., Intermountain For- 

 est and Range Exp. Sta. Res. Pap. 62, 9 p. Ogden, Utah 

 84401. 



Richardson, B. Z. 



1966. Installation of soil moisture access tubes in rocky soils. J. 

 Soil and Water Conserv. 21(4): 143-145. 



Troxler, W. F. 



1963. Calibration of nuclear meters for measuring moisture and 

 density. Amer. Soc. for Testing and Materials. Spec. Tech. 

 Pub. 351, 13 p. 



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liG PO 78 1 - 007 



