REVIEWS 897 



quartzitic *ock interbanded with hematite, sunk upon many years ago, but 

 not developed to any great extent as a mine. Rock of the same sort has 

 been found near Michipicoten Post and Cape Choye\ Professor Willmott 

 having ascertained the latter range to be six miles long, though without ore 

 so far as known. 



Once more a wide band of Laurentian intervenes, the next examples of 

 the iron formatian occurring sixty-five miles to the south, near Batchawana 

 Bay, where two bands run nearly parallel to one another, about east and 

 west, each from four and a half to five miles long, with reported finds some 

 miles to the east on Harmony River, and to the west near Pointe aux Mines 

 on Lake Superior. The two bands differ in character, the one to the south 

 being of jasper with hematite and that to the north cherty or quartzitic with 

 magnetite. 



The next known locality, about nine miles northeast of the Sault, is of 

 the same character as the last, and is enclosed in Laurentian rocks instead 

 of Huronian or basic eruptives as in most other localities. The wide band 

 of Huronian between the "Soo" and Sudbury is not known to contain any 

 rocks of the iron formation, though the large numbers of bright red jasper 

 pebbles in the conglomerates of the upper Huronian must have a source 

 somewhere in the region. 



In the considerable area of Huronian north of Woman River, on the main 

 line of the Canadian Pacific railway, jaspery iron ore has been reported, but 

 no details have been obtained regarding it. To the east of this Mr. Whitson 

 has examined a jasper range running several miles in a southeasterly direc- 

 tion, between the upper end of Onaping Lake and Meteor Lake ; and about 

 twenty-five miles to the northeast is a range of jasper, chert and impure sid- 

 erite with magnetite and limonite of the Shining Tree Lake region, running 

 somewhat west of north and south of east for three and a half miles, and 

 perhaps for double that distance. A few miles farther northeast jasper is 

 reported from one of the chain of lakes belonging to Montreal River, and 

 still farther to the north at Night Hawk Lake. 



In the southern portion of this Huronian region rocks of the kind 

 occur on the northwest shore of Lake Wahnapitae as dull red jasper and 

 chert with magnetite, and extend west in the Laurentian in Hutton and 

 Wisner townships. It may be that there are two separate bands here, the 

 southern one east and west and the northern one north and south, the latter 

 the more important, as containing what are said to be large deposits of mag- 

 netite. 



Of the iron range to the northeast of Lake Wahnapitae, Professor Miller 

 reports that "starting from Lake Temiscaming on the east the first outcrop, 

 which is of small size and was not visited by me, is situated a short distance 

 east of the east end of Rabbit lake. The next outcrops occur along the 

 northeast shore of the east end of the northeast arm of Lake Temagami, the 

 band here stretching from near Snake Lake west to Tetapaga. Outcrops 



