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Publication Extents

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Geology of the Southern Guadalupe Mountains, Texas
Philip B. King
1948, Professional Paper 215
This report deals with an area of 425 square miles in the western part of Texas, immediately south of the New Mexico line. The area comprises the south end of the Guadalupe Mountains and the adjacent part of the Delaware Mountains; it includes the highest peaks in the State of...
Index to river surveys made by the United States Geological Survey and other agencies, revised to July 1, 1947
Benjamin E. Jones, Randolph Olaf Helland
1948, Water Supply Paper 995
The descriptive list of surveys of rivers in the United States issued by the United States Geological Survey in 1926 as Water-Supply Paper 558 comprised surveys by the Geological Survey and other Federal bureaus and by State, semiofficial, and private agencies. Since then many additional river surveys, most of them...
Application of Brianchon's theorem to construction of geologic profiles
J.B. Mertie Jr.
1948, Geological Society of America Bulletin (59) 767-786
Brianchon's theorem states that the three diagonals joining opposite vertices of a hexagon circumscribed about a conic are concurrent. A corollary of this theorem applies to a pentagon so that the points of tangency of an inscribed conic may be located. Any five non-concurrent straight lines in a plane, no...