01163cam a22002771 4500 gs 20000168 DLC 20260227111324.0 891018s1919 at abef f000 0 eng c gs 20000168 (OCoLC)20509444 Library, U.S. Geological Survey CU CU DLC premarc QE348 .A2 no. 77 Simpson, Edward S. (Edward Sydney), 1875-1939. Sources of industrial potash in Western Australia, by Edward S. Simpson ... with two appendices. 1. Examination of Western Australian seaweeds for potash and iodine, by I.H. Boas ... 2. Alunite deposits at Kanowna, by T. Blatchford ... With two plates, four figures. Perth, F.W. Simpson, government printer, 1919. 46 p. II pl. (plan, fold. map) diagrs. 21 cm. Western Australia. Geological survey. Bulletin no. 77 Potash industry and trade Western Australia. Alunite. Iodine. Boas, I. H. Blatchford, Torrington. Bulletin (Geological Survey of Western Australia) ; no. 77. 25996 25996