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Report on the operations of the coal-testing plant of the United States Geological Survey at the Louisiana Purchase Exposition, Saint Louis, Missouri, 1904: Part I.--Field work, classification of coals, chemical work
E.W. Parker, J.A. Holmes, M. R. Campbell
1906, Professional Paper 48
The authority for conducting at the Louisiana Purchase Exposition an investigation of the coals and lignites of the United States is contained in the act of Congress providing for the urgent deficiencies in the appropriations for the fiscal year 1905, and approved February 18, 1904, as follows: For analyzing and testing....
The Tertiary and Quaternary pectens of California
Ralph Arnold
1906, Professional Paper 47
This paper consists of two parts. The first is a brief outline of the different Tertiary and Pleistocene formations of California, giving the type localities, where, when, and by whom first described, their salient characters, where they and their supposed equiyalents are known to occur, the species of Pecten found...
The geography and geology of Alaska; a summary of existing knowledge, with a section on climate, and a topographic map and description thereof
A. H. Brooks, Cleveland Abbe Jr., R.U. Goode
1906, Professional Paper 45
Alaska, the largest outlying possession of the United States, is that great land mass forming the northwestern extremity of the North American continent, whose western point is within 60 miles of the Asiatic coast (PI. II). About one-quarter of this area lies within the Arctic Circle, and from the standpoint...
Quality of water in the upper Ohio River basin and at Erie, Pennsylvania
Samuel James Lewis
1906, Water Supply Paper 161
This paper discusses the quality of water on the most important tributaries of Ohio River in Pennsylvania, New York, West Virginia, and Maryland, and the nature of the water supply at Erie, Pa. The amount and character of the pollution is described and the results of drinking contaminated water as...
Twenty-seventh annual report of the Director of the United States Geological Survey
Charles D. Walcott
1906, Annual Report 27
During the last fiscal year the character of the work and the organization of the force remained substantially the same as described in the Twenty-sixth Annual Report. Accounts of the work performed in geology and paleontology, chemistry and physics, topography and geography, and hydrography, hydrology, and hydro-economics, as well as...
Zinc and lead deposits of the Upper Mississippi Valley
Harry Foster Bain
1906, Bulletin 294
The zinc and lead mines of the upper Mississippi Valley are in the southwest portion of Wisconsin and in adjacent parts of Illinois mid Iowa. The boundaries of the region are in part indefinite, since sporadic occurrences of the minerals are found outside the mining region proper. It is usual...