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Page 207
It would appear , from some of the indications , that fire was the agent used to disintegrate the rock . Some idea of the extent of their operations may be formed from the fact that one of the explorers found a mass of native copper ...
It would appear , from some of the indications , that fire was the agent used to disintegrate the rock . Some idea of the extent of their operations may be formed from the fact that one of the explorers found a mass of native copper ...
Page 210
Beyond is another bed of amygdaloid rock , about 1500 feet thick ... They cross the belts of rock nearly at right angles , and have , in many instances , been traced through all the formations . One vein is known to have been worked on ...
Beyond is another bed of amygdaloid rock , about 1500 feet thick ... They cross the belts of rock nearly at right angles , and have , in many instances , been traced through all the formations . One vein is known to have been worked on ...
Page 222
The character of the trappean rocks also differs from that which they exhibit upon the point . The varieties of rock are more numerous and epidote almost always occurs where copper is found . West of the Ontonagon , a large part of the ...
The character of the trappean rocks also differs from that which they exhibit upon the point . The varieties of rock are more numerous and epidote almost always occurs where copper is found . West of the Ontonagon , a large part of the ...
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Contents
ARTICLE PAGE I ELEMENTS OF INTERNATIONAL Law | 1 |
THE JESUITS | 14 |
RUSSIA | 37 |
Copyright | |
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