Map shows early twentieth century California railroads, cities and towns, counties, electric lines, and Native American reservations in Nevada. Includes indexes and statistics. Insets: "San Francisco and vicinity." Relief shown by hachures and spot heights. Scale [ca. 1:2,724,280], [ca. 1:2,661,120], and [ca. 1:2,027,520].

From Prefactory Statement: "In this bulletin are presented the results obtained in the first two phases of the work outlined above. The bulletin is in two parts. The first part describes the methods of mining and milling used, suggests a standard method of sampling finished graphite, and describes a rapid and convenient method of analysis developed at the Pittsburgh station of the Bureau of Mines, to which has been assigned the analytical and microscopic work. The second part describes experiments on the concentration and milling of graphite, which were made at the Salt Lake City, Utah, station."