 | Josiah Dwight Whitney - 1862 - 390 Seiten
...towards Mineral Point. For about the depth of fifteen feet, the fissure was found to be filled with " gossan," and lumps of sulphuret and carbonate of copper...in other parts besides the strip near the surface." Farther on he gives some account of the smelting operations, as follows : " It is said that 1,640,000... | |
 | Wisconsin. Commissioners of the Geological, Mineralogical, and Agricultural Survey - 1862 - 516 Seiten
...towards Mineral Point. For about the depth of fifteen feet, the fissure was found to be filled with "gossan," and lumps of sulphuret and carbonate of...in other parts besides the strip near the surface." Farther on he gives some account of the smelting operations, as follows : " It is said that 1,640,000... | |
 | j. d. whitney - 1862 - 374 Seiten
...towards Mineral Point. For about the depth of fifteen feet, the fissure was found to be filled with "gossan," and lumps of sulphuret and carbonate of...in other parts besides the strip near the surface." Farther on he gives some account of the smelting operations, as follows : " It is said that 1,640,000... | |
 | Geological Survey of Canada - 1887 - 1088 Seiten
...coal per square mile. The extent of this coal-bed to the north and south has not yet been worked out, but there is every reason to suppose that it will be found stretching for many miles on either side of its present known outcrops. Nearest in character to the... | |
 | 1909 - 622 Seiten
...side. This is practically a. new type of waggon, and was exhibited for the first time at the RA Show, but there is every reason to suppose that it will be found to be equally suitable for work in connection with the brewery and mineral water trades as the well-known... | |
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For about the depth of fifteen feet, the fissure was found to be filled with " gossan," and lumps of sulphuret and carbonate of copper mixed in it. Below this depth is clay, with a little ore scattered through it. The lumps above were of all sizes, up... 