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Correlation of Gravity of the Coal Creek Serpentine Mass, Blanco and Gillespie Counties, Texas

Description: Abstract: "Gravitational observations were made of the pre-Cambrian Coal Creek serpentine mass in Blanco and Gillespie Counties, Texas, the geology of which had been mapped previously. The observed gravitational anomalies indicate roughly the depth of the serpentine mass below which it may possibly grade into its parent peridotitic rock. Probable correlation between the gravitational map and the other geologic features of the area is indicated" (p. 151).
Date: April 2, 1949
Creator: Romberg, Frederick & Barnes, Virgil E. (Virgil Everett), 1903-1998
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

Well-Casing Grapple

Description: Patent for a well-casing grapple, allowing a positive grip when lowering casing or pipe within a well, or withdrawing it therefrom, without the danger of slipping or accident.
Date: April 30, 1918
Creator: Artzt, Erich C.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Music-Leaf Turner

Description: Patent for a music leaf turner to turn the pages of sheet music for pianists. Illustrations included.
Date: April 2, 1912
Creator: Meier, Ernst
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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