00975cam a22002651 4500 gs 43000014 DLC 20260227111348.0 751114s1942 wauaed 000 0 eng gs 43000014 (OCoLC)1833581 DLC F OCoLC DLC premarc QE75 .B9 no. 934 TN914.U5 M26 Copy 2. Mansfield, George Rogers, 1875-1947. ...Phosphate resources of Florida, by George R. Mansfield. Washington, U.S. Govt. print off., 1942. iv, 82 p. incl. illus. (diagrs.) tables. l8 fold. pl. (incl. mpas) 24 cm. U. S. Geological survey. Bulletin 934 At head of title: U. S. Dept. of the interior. Harold L. Ickes, secretary. Geological survey, W. C. Mendenhall, director. Four folded maps are in pocket. Bibliographical foot-notes. Phosphates Florida. 27874 27874