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Experiments on schistosity and slaty cleavage /

By Becker, George F..
Washington, Govt. Print. Off., 1904 .
34, ii p. : , Subject series: D, Petrography and mineralogy, 31; E Chemistry and physics, 43. | Includes index. 24 cm..

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Reconnaissance of the gold fields of the southern Appalachians,

By Becker, George F..
Washington, Govt. Print. Off., 1895 .
85 p. , Cover title. | Extract from the 16th annual report of the Director of the U.S. Geological Survey, 1894-95, pt. II. 30 cm. x 23 cm..

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Relations between local magnetic disturbances and the genesis of petroleum,

By Becker, George F..
Washington, Govt. Print. Off., 1909 .
24 p. 24 cm..

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George F. Becker papers,

By Becker, George F..
.
9,900 | 36 | 1 | 14.5

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