11 



88a. Dennis, W. B. The ciuicksilver deposits of Oregon. Eng. & Mg. Jour.. 

 \ol. 7(i, PI). 539-41, 1903. 



Describes the occurrence, character and geologic relations of the 

 quicksilver ore deposits of Oregon and the mining developments. 



88b. A borax mine in Southern Oregon. Eng. & Mg. Jour., Vol. 73, pp. 



581-2, 2 figs, 1902. 



Contains brief description of the deposit. 



89. Demaret, Leon. Les principaux gisements des minerais de mercure du 



inondo. .\nnales de Belgicjue, t. g. 80 pp., 3 Pis., 28 figs., 1904 



(lives an account of the deposits of quicksilver in the world, their 

 occurrence, geologic relations, production, etc. In the United States 

 deposits in California, Oregon and Texas are considered. 



90. Diller, Joseph Silas. Fulgurite from Mt. Thielson, Oregon. Am. Jour. 



Sci., Vol. 128, pp. 252-9, 1884. 



91. Notes on the Geology of Northern California. Bull. 33, U. S. G. S., 



1886. 



92. — — Geological Investigation in Oregon. Division Report, 10th aimual 



report, U. S. G. S., 1, p. 145, 1889. 



93. Saxonite from Riddles. Bull. 60, U. S. G. S., p. 20-6, 1890. 



94. Geological Investigation. Division report, 12th annual report, Vol. 



1, p. 100, 1891. 



95. Bull. Geol. Soc. Amer., Vol. 2, pp. 207-8, 1891. 



A discussion of Becker's article on cretaceous of Riddles, Idem, 

 pp. 201-6. 



96. Cretaceous and Early Tertiary of Northern California and Oregon. 



Bull. Geol. Soc. Am., Vol. 4, pp. 205-24, 1893. 



Mainly California with reference to Oregon. 



97. ■ — — Tertiary Revolution in the Topography of the Pacific Coast. 14th 



annual report, U. S. G. S., Pt. 2, p. 414, 1894. 



Chiefly on Northern California; map showing in Oregon Neocene 



Eruptives, p. 414. 



98. A Geological Reconnaisance in Northwestern Oregon. 17th aimual 



report, U. S. G. S., Part 1, pp. 447-520. 



Historical and structural geology, topograhpy, historical notes, 

 geological formations, economic geology, the coal fields, analysis of 

 coal, building material. 



99. Crater Lake. National Geographic Magazine, Vol. 8, No. 2, Feb.. 



1897. Jour. Geology, Vol. 5, pp. 219-20, 1897. 



Similar to U. S. G. S. Report. 



99a. Crater Lake, U. S. Dept. Interior, 1912. 



100. The Klamath Mountains. Mazama, Vol. 1, pp. 104-8, 1897. 



Map showing Northern California during Chico Age. 



100a. The Origin of Camas Swale. Science N. S., Vol. 6, 1897, p. 923. 



101. The Coos Bay Coal Field, Oregon. 19th aimual report, U. S. G. S., 



Part 3, pp. 309-76, 1897-8. 



Location and size, topograph} % geology, structure, fossils. 



