314 Scientific Intelligence, 
I may rgncr 4 give you the results arrived at, after now some 
work in Eastern Ontario and the adjoining ed of 
but this does not appear to be dias to the nidpeuitics of sodichtie 
This rock forms the Salih bon of Canada. On it there has been 
of these economics are in close proximity and have close relation- 
ship to each of the four or five great bands of crystalline lime- 
stone. 
sil may, and indeed has been = set ound in some of the lower 
limestones, The celebrated Petite Nation locality for Hozoon, 
has now been proved to be on this highest band of limestone, and 
in fact in the most a portion of my second system, the zone of 
limestone in which t ossil occurs is ct eat characterized by 
i t 2 
giving out as escend into these older rocks; while the fis- 
sures themselves narrow to threads and bifurcate. This fact has 
been proved by a close and careful investigation in Rossie. 
wins 
ree <dasiowele: iaeiditiane: Bedford, Madoc, and Tudor, in Can- 
é 
fmm — — the Sse limestone the a 
belt of rocks come in with horizons of both hematitic 
delet iron oves-vehlall the vii’ and immediately low thine 
again a great belt of plumbago-bearing rock (extensively wrought 
for this mineral in Buckingham and Lochaber, — county), 
of ma ) 
which occur a number of promising min es (e. g. the Baldwyn an 
Qs the Christies’ a —_ mucha Lake 
with apatite intimately associated, which has now been identitie 
and followed continuously for upwards of one hundred sailen 
