30 BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, [bull. 
Calkins (Frank C), Smith (George Otis) and. 
1. A geological reconnaissance across the Cascade Range near t 
Forty-ninth Parallel. 
See Smith (George Otis) and Calkins (Frank C. ), 1. 
Calvin (Samuel). 
1. Twelfth annual report of the State geologist [Iowa]. 
Iowa Geol. Surv., vol. 14, pp. 1-6, 3 pis. (maps), 1904. 
Campbell (Marius R.). 
1. Conglomerate dikes in southern Arizona. 
Am. Geol., vol. 33, pp. 135-138, 2 pis., 1904. 
Describes the general geologic structure of the region, the occurrence a 
character of the dike, and the source of its material. 
2. The Deer Creek coal field, Arizona. 
U. S. Geol. Surv., Bull. no. 225, pp. 240-258, 1 fig., 1904. 
Describes location, stratigraphy, and geologic structure of the field, the ch; 
acter and occurrence of coal seams, and the composition and value of t 
coal. 
3. The Meadow Branch coal field of West Virginia. 
U. S. Geol. Surv., Bull. no. 225, pp. 330-344, 1 fig., 1904. 
Describes location of the field, the stratigraphy and geologic structure, the ch* 
acter and occurrence of the coal beds, the quality of the coal and the mini 
developments. Includes a short report by David White on the fossil plan 
4. Latrobe folio, Pennsylvania. 
U. S. Geol. Surv., Geol. Atlas of U. S., folio no. 110, 1904. 
Describes physiographic features, the general geologic structure and history 
the area, the character and occurrence of Devonian and Carboniferous stra j 
and Quaternary deposits, and the mineral resources, chiefly coal. 
5. Glacial erosion in the Finger Lake region, New York. 
Abstract: Science, new ser., vol. 19, pp. 531-532, 1904. 
Discusses the origin of the present physiographic features of this region. 
Capilla (Alberto). 
1. Los yacimientos de fierro de "Tatatila," Canton de Jalapa, E. c 
Vera Cruz [Mexico]. 
Secretarfa de Fomento [Mexico], Bob, 2 « epoca, afio 3, no. 10, II, pp. 535-54 
1904; Soc. Cient. Ant, Alz., Mem. y Rev., t. 19, pp. 341-346, 1904. 
Describes the character and occurrence of iron-ore deposits in the state ' 
Vera Cruz, Mexico. 
Capps (S. R.) and Leffingwell (E. D. K.). 
1. Pleistocene geology of the Sawatch Range, near Leadville, Colo. 
Jour. Geol., vol. 12, pp. 698-706, 2 figs., 1904. 
Discusses the extent in this region of the ice curing the Glacial epoch, an 
describes the drift deposits, terraces, and drainage changes. 
Carlyle (E. J.). 
1. The Pioneer iron mine, Ely, Minn. 
Can. Mg. Inst., Jour., vol. 7. Advance separate, 33 pp., 25 figs., 1904. 
Includes some account of the general geology of the region, and of the chai 
acter, occurrence, and geologic relations of the iron-ore deposits. 
