00868cam a22002531i 4500 gs 11000453 DLC 20260227111311.0 790620s1911 dcua f000 0 eng gs 11000453 (OCoLC)5086920 DLC ICharE DLC premarc QE75 .B9 no. 475 Gilpin, Joseph Elliott, 1866- The diffusion of crude petroleum through fuller's earth with notes on its geologic significance, / by J. Elliott Gilpin and Oscar E. Bransky. Washington, Govt. Print. Off., 1911. 50 p. : ill. ; 24 cm. U.S. Geological survey. Bulletin 475 Petroleum engineering. Fuller's earth. Bransky, Oscar Ellis, 1886- United States. Geological Survey. Bulletin ; 475. 25059 25059