520 Transactions of the Canadian Institute. [vol. ix 



"The copper-bearing rock also contains crystalline quartz, some of 

 which forms beautiful amethystine veins, of which some specimens were 

 taken. 



"This island, Barry Island or Iglor-yu-ullig, is several miles in length, 

 and perhaps three or four miles across. The island to the south-south- 

 east, Kun-nu-yuk, is still larger, besides which there is an island to the 

 south-west which has given much copper, and there are copper-yielding 

 islands to the north. The copper-bearing formation holds good every- 

 where except on the summit cappings of the islands. 



"On the 23rd, on our way across Bathurst Inlet, we approached a 

 flat-topped precipitous island very much resembling a kopje. 



"About five miles beyond this limestone island we passed a small 

 basaltic island on which two pieces of copper ore were picked up. It 

 seems as if copper is to be found wherever this basalt occurs. 



' 'With the exception of some precipitously-cut rocks near our camp, 

 this island is formed of the same partly-decomposed basalt as Barry 

 Island. It is described as fine-grained, granular crystall ne, decom- 

 posed basalt. 



"Although we did not find so much copper here, the green marks on 

 the rocks were more numerous, but we did not spend an hour altogether 

 in the search. One of our Eskimo knew of a large mass of copper on the 

 south-west shore of the island, which he stated to be as much as five feet 

 in length and three inches thick. It protruded from the rocks under the 

 water, it was said, but there was too much ice for us to find the copper. 

 A piece of quartz with copper ore and native copper was picked up on the 

 seashore. Another specimen of the copper-bearing rock here is a de- 

 composed basalt, fine-grained, and not unlike No. 15, but vesicular. 



"On the 27th we rested at the north-west point of Lewis Island, 

 where we again found the copper-bearing basalt, and accordingly we 

 commenced a search that resulted in our collecting about 2 pound weight 

 of copper. The metal appeared to be very persistent in its occurrence 

 in the partly decomposed basalt of which all the islands we passed that 

 day consisted. The flakes of copper seemed to be always vertical when 

 in their rock matrix. The rocks of this island, where they are not dis- 

 integrated, are well smoothed by glacial action, and the striae are 

 numerous and distinctly trend south and south-east."* 



An important addition to our knowledge of the copper-bearing 

 rocks of the northern coast of Am.erica has just been brought to my 

 attention by Doctor James Douglas of New York, and I am permitted 

 to publish it through the kindness of the Secretary of the American 

 Museum of Natural History. The information is contained in a letter 



* Sport and Travel. Pp. 264-6. 



