DOWLI.va. 
CAMimiAN 
35 F 
From centre of the section — 
Metallic iron 
... 68 62 
per cent. 
RpHults of 
three analy.se.s 
Insoluble siliceous residue. . . . 
Titanic acid 
... 4 ‘21 
. . . none 
(( 
From lowest bed exposed — 
Metallic iron 
... 27-72 
per cent. 
Insoluble siliceous residue. . . . 
Titanic acid 
. . 61-12 
. . none 
U 
The u{iper and lower beds represent the general mass of the sand- 
stone and slate, the first being the slate of the beds just below the 
trap aud not picked out as being an iron ore, while the specimen from 
the base of the section was of the dark red sandstone or jaspilyte, which 
showed streaks in which the magnetite made up a large percentage. The 
specimen from the centre of the section represents one of many of the 
richer beds in which nearly all the silica has been replaced liy magne- 
tite. There is a probability that thick enough IhmIs of this ore could 
be found for profitable working, but their remoteness from the sea on, 
any near line of railway would render their present value in any case 
very doubtful. 
Sn.UlUAN. 
The valleys of all the streams entering the western side of 
James hay are cut down through the drift deposits to a fiat-lying hniMtonc. 
limestone, which hums a wide belt around the west shore of the hay 
and along the southern shore of 1 1 udson bay. < hi the AH»any river the 
upper part of the series is proved to he of Itevonian age, and Ijeneath, 
at a greater distance from sea, Silurian limestones are exp.isod. These 
beds probably overlap any older ones that may be beneath, and rest 
directly on ihe Archa'an. 
On tlie Attawapiskat river Dr. Hell recognize! the Silurian in the Rock.s pn.vod 
upper reache.s of that stream, but a small serie.sof fo.ssils collected farther sihirian!'^' 
down, near the bay, .seemed to present a Devonian faoie.s, and the rooks 
of this age were then supposed to c.vloml northward to this river. The 
collection of fo,wil.s from the portage on the F.kwan river was ns com. 
plete as we could make it in view of thi.s f;ict .Maiiy of the species 
formerly collected both from the Attawapi.skat and the .Severn rivers 
were of forms apparently new to science or undescribcil, so that their 
value as horizon niarker.s was not very great. My collection embraced 
many more species and some in a good state of prcsor\ ation, so that 
Dr. Wliiteaves had no difficulty in deciding at once that they were not 
3h 
