162 



UNITED STATES MINERAL RESOURCES 



Missouri Geological Survey and Water Resources, 1970, 



[Storage] : Missouri mineral industry news, Rolla, Mo., 



V. 10, no. 5, p. 95. 

 Severinghaus, Nelson, 1960, Crushed Stone, in Gillson, J. L., 



ed., Industrial minerals and rocks [3d ed.] : Am. Inst. 



Mining Metall. and Petroleum Engineers, p. 285-302. 

 Stose, G. W., ed., 1932, Geologic map of the United States: 



U.S. Geol. Survey. 



Sweet, H. S., and Woods, K. B., 1942, A study of chert as a 

 deleterious constituent in aggregates : Purdue Univ. 

 Eng. Bull., V. 26, no. 5, 110 p. 



Thrush, P. W., ed., 1968, A dictionary of mining, mineral, 

 and related terms: U.S. Bur. Mines, 1269 p. 



Wood, S. 0., Jr., and Carrales, M., Jr., 1970, Stone: U.S. 

 Bur. Mines, preprint from 1969 Bureau of Mines Min- 

 erals Yearbook, 21 p. 



