...including the gneiss, the hornblende and mica schists, the magnetic iron ore, and the quartzo-fcldspathic rocks, are of metamorphic origin, there can be but...subsequently disturbed in their position, and altered by inctamorphic agencies, which have caused them to assume their present form and position. The origin,...

...including the gneiss, the hornblende and mica schists, the magnetic iron ore, and the quartzo-feldspathic rocks, are of metamorphic origin, there can be but...position. The origin, therefore, of these deposits ofmagnetic iron ore, is identical and contemporaneous with the rocky strata in which they are enclosed....

...including the gneiss, the hornblende and mica schists, the magnetic iron ore, and the quartzo-feldspathic rocks, are of metamorphic origin, there can be but little doubt ; consequently, it is conceited that they were originally deposited by water in a horizontal position, that they are composed...

...hornblende and mica schists, the magnetic iron ore, and the quartzo-feldspathic rocks, are of metainorphic origin, there can be but little doubt; consequently,...these deposits of magnetic iron ore, is identical and cotemporaneous with the rocky strata in which they are inclosed. To such an extent is magnetic iron...

...they are inclosed, but generally cross the line of stratification and frequently send off branchas of greater or lesser dimensions, at different angles...these deposits of magnetic iron ore is identical and cotemporaneous with the rocky strata in which they are inclosed. MAGNETIC PROPERTIES. polarity of the...

...including the gneiss, the hornblende, and mica schists, the magnetic iron ore, and the quartz-l'eldspathic rocks, are of metamorphic origin there can be but...doubt ; consequently it is conceived that they were oiiginally deposited by water in a horizontal position ; that they are composed of materials derived...

...In their form. are of aqueous origin, and that they coincide In geological position and In the modo of formation with the rocks In which they are situated....of materials derived from pre-existing rocks; and they were subsuquently disturbed In their position and altered by metamorphlc agencies, which have...

...the magnetic iron ore, and the quartz-feldspalhic rocks, are of metamorphic origin there can he bnt little doubt: consequently it is conceived that they...of materials derived from pre-existing rocks; and they were subsequently disturbed In their position and altered by metamorphic agencies, which have...

...the quartz-feldspa(hic rucks, an- of metamorphic origin there can be but littie doubt; consequentiy it is conceived that they were originally deposited...of materials derived from pre-existing rocks; and they were subsequentiy disturbed in their position and aitered by metamorphie agencies, which have...

...the magnetic iron ore, and the quartz-feldspathic rocks, are of metamorphic origin there can be hut little doubt ; consequently it is conceived that they...therefore, of these deposits of magnetic iron ore i? identical and contemporaneous with the rocky strata in which they are enclosed." (Pp. 12-13.) This...