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

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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. 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. Categories: Image; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Patterson, E.F. Collection, Photographers, Washington, D.C., photo print Alice Dowse Weeks, Geologist, operating an ultrasonic generator. Rapid Rock Analysis Laboratory, USGS Geologic Division, Washington, D.C. 1958. 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. Categories: Image; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Patterson, E.F. Collection, Photographers, Washington, D.C., photo print