48 BIBLIOGKAPHY OF NOKTH AMERICAN GEOLOGY, [bull. 2 
Emmons (S. F.) — Continued. 
4. Occurrence of copper ores in Carboniferous limestone in the regie 
of the Grand Canyon of the Colorado. 
Abstract: Science, new ser., vol. 20, pp. 760-761, 1904. 
Emmons (S. F.), Hayes (C. W.). I 
1. Contributions to economic geology, 1903. 
U. S. Geo!. Surv., Bull. no. 225, 527 pp., 1 pi., 11 figs., 1904. 
Emmons (S. F.), Irving (John Duer) and. 
1. Economic resources of the northern Black Hills. Part II. Mir 
ing geology. 
See Irving (John Duer) and Emmons (S. F. ), 1. 
Evans (Herbert M.). 
1. A new cestraciont spine from the lower Triassic of Idaho. 
Cal. Univ., Dept. Geol., Bull., vol. 3, pp. 397-401, 1 pi., 1904. 
Eyerman (John). 
1. Contributions to mineralogy. 
Am. Geol., vol. 34, pp. 43-48, 1904. 
Describes the occurrence, characters, ami composition of some minerals fror 
New Jersey and Pennsylvania. 
F. 
Fairbanks (H. W.). 
1. Gypsum deposits in California. 
U. S. Geol. Surv., Bull. no. 223, pp. 119-123, 1 pi., 1904. 
Describes character, occurrence, and geologic relations of the gypsum deposit i 
of California. 
2. San Luis folio, California. 
U. S. Geol. Surv., Geol. Atlas of U. S., folio no. 101, 1904. 
Describes topography a ml <lrainage, climate and vegetation, the character 
occurrence, and relations of Juratrias (?), Cretaceous, and Tertiary scdi 
mentary rocks and included igneous rocks, the geologic structure anc 
history of the area, the development of the physiographic features, and th( 
economic resources and soils. 
Fairchild (Herman Le Roy). 
1. Direction of pre-Glacial stream flow in central New York. 
Am. Geol., vol. 33, pp. 43-45, 1904. 
2. Geolog\ T under the new hypothesis of earth origin. 
Am. Geol., vol. 33, pp. 94-116, 1904. 
Compares the sufficiency of the nebular and planetesimal hypotheses and dis- 
cusses the explanation given by the latter of the origin of the atmosphere 
and ocean, volcanic phenomena, deposits of hydrocarbons, ores, salt, and 
gypsum, climate in geologic time, glaciation, crustal movements, and life 
on the earth. 
3. Geology under the planetesimal hypothesis of earth origin. 
Geol. Soc. Am., Bull., vol. 15, pp. 243-266, 1904. 
See preceding entry. Includes discussion by Edward H. Kraus, Willis T. Lee, 
Israel C. Russell, and Frederick W. Sardeson. 
