Taxonom}! of Lakt Siijicrior Rcijion. — W'niclivll . 'X;M 
It is. further, of interest to note, that in the same report (pp. .')1B, 
157B, etc.), contemporaneous igneous rocks occur amongst these strata 
in this part of the mountains, thus adding another, and quite impoi-t- 
ant locaHty where in Canada a similar history prevailed. 
Still later, Mr. A. P. Low, of the Canadian survey, has made an 
important announcement (Summary report of operations of the survey 
for 1894, G. M. Dawson, director, Ottawa, 1895 : reviewed in the Am, 
Geologist, Sept., 1895, p. 199). In the course of his explorations in the 
Labrador peninsula, he discovered a great and hitherto vmknown area 
of Taconic rocks. " extending north-northwest from north latitude 53 
degrees to beyond the west side of Ungava bay. These rocks are made 
uij of a great thickness of conglomerates, sandstones, slates, shales and 
limestones, together with intrusive igneous rocks. Their chief economic 
value is due to the immense amount of bedded iron ore found along with 
them. The ores are chiefly specular and red hematite, together with 
beds of siderite or carbonate of iron. Thick beds of fine ore associated 
with jasper were met with in many places on both the Ungava and 
Hamilton rivers: and the amount seen runs vip into millions of tons. 
Owing to their distance from the seaboard, these ores at present are of 
little value, but the time may come when they will add greatly to the 
wealth of the country." The reviewer adds: " The similarity of these 
areas with the valuable mining districts of northern Michigan, Wiscon- 
sin and Minnesota seems especially noteworthy." It seems likely, 
therefore, that, with the great Norian anorthosytes for which Labrador 
is well known, that peninsula will yet develop into one of the interest- 
ing localities of Canadian Taconic rocks, comparable with the Taconic 
of the Lake Sviperior region. 
The reader will please make the following errata in this series of 
papers: 
P. 299, vol. XV, seventh line from the top, for "distributed," I'cad 
disturbed. 
P. 304, vol. XV, seventh line from the top, for "Adirondack," read 
Taconic. 
P. 18, vol. XVI, last line in the foot note, for "xiv." read xv. 
P. 1.50, vol. XVI, twelfth line from the bottom, for "ever," icad 
even . 
P. 210, vol. XVI, third line from the toj). for •• applicablr."" rend 
capable. 
P. 212, vol. XVI, between the fifth and sixth lines from tlie bottom, a 
line has been omitted: supply. Keweenawan and Ihc reddish sand 
stone of the. 
A/r/.s, (h-t IC, isi).-,. 
