Results of a biological survey of the San Francisco Mountain region and desert of the Little Colorado, Arizona. 1. General results with special reference to the geographical and vertical distribution of species. 2. Grand cañon of the Colorado. 3. Annotated list of mammals, with descriptions of new species. 4. Annotated list of birds.

By Merriam, C. Hart.
Washington, Govt. Print. Off., 1890 .
vii, 136 p., 13 l. 23 cm..

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The basaltic cinder cones and lava flows of the San Francisco mountain volcanic field.

By Colton, Harold Sellers,.
Flagstaff, Northern Arizona society of Science and art, 1937 .
2 p.l., [3]-50 p. , Reproduced form type-written copy. 21 cm..

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The basaltic cinder cones and lava flows of the San Francisco mountain volcanic field.