340 PHYSICAL GEOLOGY 



REFERENCES FOR VOLCANOES 



Bonney, T. G., — Volcanoes, their Structure and Significance. 



Chamberlin and Salisbury, — Geology, Vol. I. 



Daly, R. A., — Igneous Rocks and their Origin. 



Dana, J. D., — Manual of Geology. 



Geikie, A., — Textbook of Geology. 



Gilbert. G. K., — Report on the Geology of the Henry Mountains. 



Hitchcock, C. H., — Hawaii and its Volcanoes. 



Hull, E., — Volcanoes: Past and Present. 



Iddings, J. P., — The Problems of Volcanism. 



Judd, J. W., — Volcanoes. 



Russell, I. C, — Volcanoes of North America. 



Schwartz, E. H. L., — Causal Geology. 



Shaler, N. S., — Aspects of the Earth, pp. 50-56. 



Topographic Maps, U. S. Geological Survey, Illustrating Igneous Activity 



Volcanoes Laccoliths 



Lassen Peak, California. Henry Mts., Utah. 



Crater Lake National Park Sturgis, South Dakota- 



(Special), Oregon. 

 Shasta, California. Lava Plains 



Marysville Buttes, California. Bisuka, Idaho. 



San Francisco Mt., Arizona. Ellensburg, Washington,, 

 Island of Kauai, Hawaiian Islands. 



Lava Sills 

 New York City and Vicinity (Folio). 

 Holyoke Folio, Massachusetts. 

 New Haven, Connecticut. 



