01197cam a22003491 4500 gs 46000019 DLC 20260227111351.0 780808s1946 oruabf b s000 0 eng c gs 46000019 (OCoLC)4120208 U. S. Geol. Survey. Libr. NcRS NcRS OCoLC DLC premarc n-us-or x4x4 QE155 .A3 no. 30 TN939 .T8 Copy 2. 553.62 Twenhofel, William H. (William Henry), 1875-1957. Mineralogical and physical composition of the sands of the Oregon coast from Coos Bay to the mouth of the Columbia River, by W. H. Twenhofel. [Portland] 1946. 64 p. illus., maps, plates. 28 cm. Oregon. State Dept. of Geology and Mineral Industries. Bulletin no. 30 At head of title: State of Oregon. Dept. of Geology and Mineral Industries. Errata slip inserted. Bibliography: p. 64. Sand. Coasts Oregon. Mineralogy Oregon. Beaches. Sedimentation and deposition. 28056 28056