 ... prospect" in so barren a rock. According to this individual, the ore obtained here was all taken out "in the grass-roots" — ie, close to the surface — and no crevices had ever been found leading down to anything workable, a statement which agrees...  Bulletin - Seite 1151906Vollansicht - Über dieses Buch
 | Wisconsin. Commissioners of the Geological, Mineralogical, and Agricultural Survey - 1862 - 516 Seiten
...grass-roots" — ie, close to the surface — and no crevices had ever been found leading down to anything workable, a statement which agrees with all I have...locality may hereafter be discovered which shall be worked for a time with profit : but that the Lower Magnesian can be called, on the whole, a "good metalliferous... | |
 | Josiah Dwight Whitney - 1862 - 390 Seiten
...grass-roots" — ie, close to the surface — and no crevices had ever been found leading down to anything workable, a statement which agrees with all I have...locality may hereafter be discovered which shall be worked for a time with profit : but that the Lower Magnesian can be called, on the whole, a " good... | |
 | j. d. whitney - 1862 - 374 Seiten
...grass-roots" — ie, close to the surface — and no crevices had ever been found leading down to anything workable, a statement which agrees with all I have...locality may hereafter be discovered which shall be worked for a time with profit : but that the Lower Magnesian can be called, on the whole, a " good... | |
 | JAMES HALL,J.D. WHITNEY - 1862 - 484 Seiten
...grass-roots "— L e., close to the surface-Hand no crevices had ever been found leading down to anything workable, a statement which agrees with all I have myself observed in the Lower Magnesian. profit : but that the Lower Magnesian can be called, on the whole, a " good metalliferous rock," is... | |
 | Wisconsin. Chief Geologist - 1882 - 986 Seiten
...mineral-bearing rock." VOL. IV.- 33 on in this rock, and that it is entirely wanting in well developed crevices, or openings promising enough to justify...locality may hereafter be discovered which shall be worked for a time with profit; but that the Lower Magnesian can be called, on the wholo, a 'good metalliferous... | |
 | Geological Survey (U.S.) - 1906 - 222 Seiten
...roots"— ie, close to the surface — and no crevice had ever been found leading down to anything workable, a statement which agrees with all I have...locality may hereafter be discovered which shall be worked for a time with profit ; but that the Lower Magnesian can be called, on the whole, a "good metalliferous... | |
 | Harry Foster Bain - 1906 - 778 Seiten
...roots"— ie, close to the surface — and no crevice had ever been found leading down to anything workable, a statement which agrees with all I have...observed in the Lower Magnesian. On the whole, it will lie safe to say that no profitable mining has ever been carried on in this rock, and that it is entirely... | |
 | William Otis Hotchkiss - 1906 - 372 Seiten
...grass roots" le, close to the surface and no ere vice bud ever been found lead ing down to anything workable, a statement which agrees with all I have myself observed in the Lower Mugnesian. On the whole, it will be safe to say that no profitable mining |msever heen curried on in... | |
 | Wisconsin Geological and Natural History Survey - 1907 - 192 Seiten
...grass roots" — ie, close to the surface- -and no crevice had ever been found leading down to anything workable, a statement which agrees with all I have...locality may hereafter be discovered which shall be worked fora time with profit; but that the Lower Magnesian can be called, on the whole, a ' ' good... | |
 | Wisconsin Geological and Natural History Survey - 1907 - 188 Seiten
...grass roots "-- ie .close to the surface -and no crevice had ever been found leading down to any t hing workable, a statement which agrees with all I have...locality may hereafter be discovered which shall be worked for a time with profit; but that the Lower Magnesian can he called, on the whole, <i "good metalliferous... | |
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