Transactions . by Dr. R. W. Ells,* as follows:—Thelargest slate quarry at present in operation in Quebec is that ofthe New Rockland company. This was first opened in 1868 andhas been worked almost continuously ever since. It is situated ona rise with an elevation of about 500 feet above the St. Francisriver, which is four miles distant to the north, and has at present aworking bench 200 feet deep. The slate cleaves readily, is veryfree from pyrites, impervious to water and equal in every respect to the celebrated Welsh slates To the northeast of this is situated the old Melbourne or Walton qua
Transactions . by Dr. R. W. Ells,* as follows:—Thelargest slate quarry at present in operation in Quebec is that ofthe New Rockland company. This was first opened in 1868 andhas been worked almost continuously ever since. It is situated ona rise with an elevation of about 500 feet above the St. Francisriver, which is four miles distant to the north, and has at present aworking bench 200 feet deep. The slate cleaves readily, is veryfree from pyrites, impervious to water and equal in every respect to the celebrated Welsh slates To the northeast of this is situated the old Melbourne or Walton quarry, on lot 22, range VI,Melbourne, about two miles distant from the St. Francis quarry was opened by the late Mr. Walton in 1860 and wasworked for about eighteen years when it was closed. A very largequantity of slate was extracted of a quality similar to that of theNew Rockland quarry and the workings were of very considerable ?An. Kept. Geo!. Survey of Canada, 1889. Part K, pp, 129, et seq. -5. ^ ir. -=-?/. 7. .^ Z Y. I 1 rv^ ?^- ^ x: fc
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