Explore the detailed scientific research presented in "Professional Paper - United States Geological Survey, Issues 117-119." This comprehensive volume, authored by the Geological Survey (U.S.), offers invaluable insights into geological formations, natural resources, and methodological approaches used in earth sciences. Delve into specific studies and findings documented by leading experts at the time of publication. This collection provides a snapshot of geological exploration and analysis during its publication period and remains a vital resource for researchers, historians of science, and anyone interested in the ongoing investigation of our planet.
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