Mineralogy and Geology of Nova Scotia. 317 
actually take place, we are however unable to say; as from the 
very imperfect examinations that have been made below Bear 
river, the ore has not yet been observed in place ; but from the 
magnetic needle being affected in this quarter as sensibly as be- 
tween Clement’s and Nictau, this supposition is rendered 
extremely probable, if, indeed, it is not confirmed by the discov- 
ery of masses of this ore in different parts of the high lands that 
stretch towards lake St. Mary’s, which forms the western termi- 
nation of the clay slate and the interstratified quartz rock. 
(See the map). Of the nature of the rock composing this cape 
we were in doubt, not having been able to visit itin 1827. For 
this reason, it was left uncolored on the map accompanying our re- 
marks in Professor Silliman’s “American Journal of Science,” 
though we were correctly informed of the extent of the slate as far 
as it was exhibited by the coloring on that map. From a view given 
of itin Des Barres’ “ Atlantic Neptune,” to which we have already 
referred the reader for several sketches of the scenery of Nova 
Scotia, we were led to expect the occurrence of columnar trap 
upon it; and the opportunity which it might thus afford us of 
witnessing the actual juxtaposition of this rock with the transition 
slate, a phenomenon for which we had hitherto looked in vain, 
was one which we could not well pass over unimproved. But on 
approaching the cape, which is fronted by a cliff of only about 
eighty feet, we soon found ourselves deceived by Des Barres’ 
sketch, which, indeed, bore so rude a resemblance to the actual 
appearance of this spot, that we were led to believe it had been 
intended to represent some other of far greater height and mag- 
nitude. For instead of the oblique and irregular lines, that would 
alone have given the dip or inclined stratification of the slate 
composing the cliff, we have vertical and horizontal lines, that, in 
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