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Richardson, Clifford. 
2038. The petroleums of North America. A comparison of the character of 
those of the older and newer fields. — Franklin Inst.. Jour., vol. 102, pp. 57-70, 
81-128, 1906. 
Richardson, George B. 
2039. The Franklin Mountains, Texas. — Abstract : Science, new ser., vol. 23, 
pp. 200-207, February 10, 1906. 
Gives a brief account of the stratigraphy and geologic structure. 
2040. Occurrence of underground waters in Sanpete and Sevier valleys, 
Utah.— Abstract : Science, new ser., vol. 23, p. 817, May 25, 1900. 
2041. Underground water in the valleys of Utah Lake and Jordan River, 
Utah.— U. S. Geol. Survey, W.-S. and Irrig. Paper no. 157, 81 pp., 9 pis., 5 figs., 
1906. 
Describes the topography and drainage, the general geology, and the occurrence and 
character of underground water. 
2042. Tin in the Franklin Mountains, Texas. — U. S. Geol. Survey, Bull. no. 
285, pp. 146-149, 1 fig., 1900. 
Describes the general geology and the occurrence and character of the tin ore. 
2043. Coal in Sanpete County. Utah.— U. S. Geol. Survey, Bull. no. 285, pp. 
280-284, 1 pi. (map), 1906. 
Describes the general geology, the occurrence and character of the coal beds, and the 
composition and character of the coals. 
2044. Underground waters in Sanpete and central Sevier valleys, X T tah. — 
U. S. Geol. Survey, W.-S. and Irrig. Paper no. 199, 63 pp., pis., 5 figs., 1907. 
Includes an account of the geology. 
2045. The Book Cliffs coal field, between Grand River, Colorado, and Sunny- 
side, Utah.— U. S. Geol. Survey. Bull. no. 316, pp. 302-320, 1 pi., 1907. 
2046. Structure of the Franklin Mountains, Texas. — Abstract : Science, new 
ser., vol. 25, p. 768, May 17, 1907. 
Rickard, Forbes. 
2047. The Boundary district, British Columbia. — Min. and Sci. Press, vol. 94, 
pp. 511-513, 3 figs., April 20, 1907. 
Includes notes on the occurrence of the copper ores. 
Rickard, T. A. 
2048. Geology of the mines at El Oro, Mexico. — Min. and Sci. Press., vol. 93, 
pp. 3.10-354, 8 figs., September 22. I9O0. 
2049. The geological distribution of gold. — Min. and Sci. Press, vol. 93, pp. 
477-480, 2 figs., October 20. 1906. 
2050. Journeys of observation. San Francisco, Dewey Publishing Company. 
1907. 255 pp., illus. 
Includes notes on the geology and ores of Mexico. 
Bound with this: Across the San Juan Mountains. 130 pp., illus. 
2051. Geological distribution of gold. — Mines and Minerals, vol. 27. no. 0. 
pp. 250-257, January, 1907. 
2052. The geological distribution of gold. — Am. Min. Congr., Kept, of Proc, 
9th Ann. Sess., pp. 220-233, 1907. 
2053. Cobalt, Ontario.— Min. and Sci. Press, vol. 94, pp. 23-25, 5 tigs.. Janu- 
ary 5, 1907. 
2054. The geology of the Veta Madre [Mexico].— Min. and Sci. Press, vol. 
94, pp. 531 537, A figs., April 27, 1907. 
2055. Lodes in (he Tertiary eruptives of Colorado. — Min. and Sci. Press. 
vol. 95, pp. 180-182. 3 figs., August 10, 1907. 
