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Oregon's mineral industry in 1964 / Ralph S. Mason -- Oil and gas exploration in 1964 / V. C. Newton, Jr. -- Field work in Oregon, 1964 / R. E. Corcoran.
Oregon's mineral industry in 1962 / Ralph S. Mason -- Oil and gas exploration in 1962 / Vernon C. Newton, Jr.
Oregon's mineral production increases sharply / Ralph S. Mason -- Oil and gas exploration in Oregon / V. C. Newton, Jr.
Oregon's mineral industry zooms upward / Ralph S. Mason -- Crack-in-the-Ground, Lake County, Oregon / Norman V. Peterson and Edward A. Groh.
Oregon's mineral industry in 1961 / Ralph S. Mason -- Oil and gas exploration in 1961 / Vernon C. Newton, Jr.