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Publication Extents

Not all publications have extents, not all extents are completely accurate
The composition of muds from Columbus Marsh, Nevada
W.B. Hicks
1915, Professional Paper 95-A
The investigation of the dry lake of Columbus Marsh, in Nevada, which had for its economic motive the discovery of potash, was continued by the United States Geological Survey during the summer of 1913 under the supervision of Hoyt S. Gale. The work done included the drilling of a shallow...
The inorganic constituents of echinoderms
F. W. Clarke, W. C. Wheeler
1915, Professional Paper 90-L
In a recent paper on the composition of crinoid skeletons we showed that crinoids contain large quantities of magnesia, and that its proportion varies with the temperature of the water in which the creatures live. This result was so novel and surprising that it seemed desirable to examine other echinoderms...
Dike rocks of the Apishapa quadrangle, Colorado
Whitman Cross
1915, Professional Paper 90-C
The Apishapa quadrangle, the geographic relations of which are shown by Plate IV, is situated on the plains south of Arkansas River, in Colorado, about 24 miles east of the mountain front. The geology of the Pueblo, Walsenburg, Spanish Peaks, and Elmoro quadrangles, adjoining it on the northwest, west, southwest,...