SELECTED BIBLIOGRAPHY 321 



Willamette Valley, Ore. 



Piper, A. M., Ground-water Resources of the Willamette 

 Valley, Oregon, U.S. Geol. Survey Water Supply Pa- 

 per 890, 1942, 194 pp. 



Willcox Basin, Ariz. 



Jones, R. S., and R. L. Cushman, "Geology and Ground- 

 water Resources of the Willcox Basin, Cochise and 

 Graham Counties, Arizona," U.S. Geol. Survey, 

 Mimeo. rept., May 1947, 35 pp. 



Wilmington, N.C. 



Mundorff, M. J., Ground Water in North Carolina, 

 N.C. Div. of Mineral Res. Bull. 47, p. 48, 1945. 



Winter Garden, Tex. 



Texas Board of Water Engineers, Progress Rept. for the 

 period September 1, 1946-August 31, 1948, pp. 1 19— 

 125, 1948. 

 Sundstrom, R. W., and C. R. Follett, Ground-water Re- 

 sources of Atascosa County, Texas, U.S. Geol. Survey 

 Water Supply Paper 1079, pp. 107-153, 1950. 



