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Filters: Tags: Washington, D.C. (X) > partyWithName: Patterson, E.F. (X)

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Album and index card caption: U.S. Geological Survey's DC-3 "flying laboratory" used in aeromagnetic surveys. Making ready for flight at the National Airport. Washington, D.C. 1960. Portion published as the upper left photograph on page 35, in the U.S. Geological Survey Unnumbered Series, Images of the U.S. Geological Survey, 1879-1979.
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Album caption and index card: Alice D. Weeks, Geologist, estimating the mineral grain composition of a rock thin section with the integrating stage. Rapid Rock Analysis Laboratory, Geologic Division, U.S. Geological Survey, Washington, D.C. 1958.
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Album caption and index card: Morphology of a crystal of colemanite, CaB3O4 (OH) 3.H2O, being studied with a two-circle optical goniometer by Joan R. Clark. The crystal is mounted on a goniometer head on the vertical circle at the left, the horizontal circle is at the bottom of the instrument, a light source is at the back, right, and the optical system is in the center of the picture. By rotating the crystal around the axis of either the vertical or the horizontal circle it is brought into position to reflect light from the crystal faces at given angles. The reflections can be observed through the optical system, their angular readings recorded, and hence the angles between various crystal faces can be measured....
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Henry Faul, geophysicist, adjusting a sample of biotite at the focal point of a mass spectrometer. Nuecleonics Laboratory, Geologic Division, U.S. Geological Survey, Washington, D.C. 1958. Upper right photograph page 36, Images of the U.S. Geological Survey, 1879-1979.
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Album caption and index card: Alice D. Weeks, Geologist, operating an ultrasonic generator for loosening adherent mineral grains from one another. Rapid Rock Analysis Laboratory, Geologic Division, U.S. Geological Survey, Washington, D.C. 1958.
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Album caption and index card: R. Wilson Bromery, geophysicist, inspecting magnetometer detecting unit. U.S. Geological Survey's "flying laboratory", Washington, D.C. 1960. Published as the lower left photograph page 35, Images of the U.S. Geological Survey, 1879-1979. Images of the USGS, 1879-1979 no. 68 index card: Same as E.F. Patterson 756.


    map background search result map search result map DC-3 used in aeromagnetic surveys. National Airport. Washington, D.C. 1960. Randolph Wilson Bromery inspecting magnetometer detecting unit on DC-3. National Airport, Washington, D.C. 1960. Alice Dowse Weeks, Geologist, operating an ultrasonic generator. Rapid Rock Analysis Laboratory, USGS Geologic Division, Washington, D.C. 1958. Alice Dowse Weeks, Geologist, estimating the mineral grain composition of a rock thin section. Rapid Rock Analysis Laboratory, USGS Geologic Division. Washington, D.C. 1958. Alice Dowse Weeks, Geologist, operating an ultrasonic generator. Rapid Rock Analysis Laboratory, USGS Geologic Division, Washington, D.C. 1958. Alice Dowse Weeks, Geologist, estimating the mineral grain composition of a rock thin section. Rapid Rock Analysis Laboratory, USGS Geologic Division. Washington, D.C. 1958. DC-3 used in aeromagnetic surveys. National Airport. Washington, D.C. 1960. Randolph Wilson Bromery inspecting magnetometer detecting unit on DC-3. National Airport, Washington, D.C. 1960.