On the Location and Examination of Magnetic Ore Deposits by Magnetometric Measurements [microform]AvEugene 1841-1927 Haanel,Canada Dept of the InteriorHäftad, Engelska, 2021209 krLägg i varukorgLägg tillSkickas inom 5-8 vardagar
Report on the Experiments Made at Sault Ste. Marie, Ont., Under Government Auspices, in the Smelting of Canadian Iron Ores by the Electro-thermic Process [microform]AvEugene 1841-1927 Haanel,Canada Mines BranchHäftad, Engelska, 2021265 krLägg i varukorgLägg tillSkickas inom 5-8 vardagar
On the Location and Examination of Magnetic Ore Deposits by Magnetometric Measurements [microform]AvEugene 1841-1927 Haanel,Canada Dept of the InteriorHäftad, Engelska, 2021209 krLägg i varukorgLägg tillSkickas inom 5-8 vardagar
Report on the Experiments Made at Sault Ste. Marie, Ont., Under Government Auspices, in the Smelting of Canadian Iron Ores by the Electro-thermic Process [microform]AvEugene 1841-1927 Haanel,Canada Mines BranchHäftad, Engelska, 2021265 krLägg i varukorgLägg tillSkickas inom 5-8 vardagar