436 SCIENCE. 
the specimens were collected by Sir James 
Hector which Salter referred to A. reticu- 
laris. 
In 1898 Mr. J. McEvoy collected a few 
fossils at several localities in the first foot- 
hill of the Rocky Mountains, in Alberta, 
where it intersects the valley of the Atha- 
basca. These fossils have not yet been 
very critically examined, but those from 
two of these localities are probably Carbo- 
niferous, and the remainder either Carbo- 
niferous or Devonian. 
In 1868 Mr. F. B. Meek published a paper 
entitled ‘Remarks on the Geology of the 
Valley of the Mackenzie River, with figures 
and descriptions of Fossils from that region, 
in the Museum of the Smithsonian Institu- 
tion, chiefly collected by the late Robert 
Kennicott, Esq.,’ in the first volume of the 
Transactions of the Chicago Academy of 
Sciences. The paper consists of a concise 
history of the discovery of Devonian rocks 
at various localities in the Athabasca, Mac- 
kenzie River and Yukon districts by Sir 
John Franklin, Sir John Richardson, Mr. 
A. K. Isbister, Major R. Kennicott, Mr. R. 
W. McFarlane, Mr. B. R. Ross and the 
Rev. W. W. Kirby, followed by descriptions 
or identifications of thirty-two species of 
Devonian fossils. Of these species ten are 
corals, twenty-one are brachiopoda and the 
remaining one is a cephalopod. Mr. Meek 
expresses the opinion that the Devonian 
rocks exposed on the Clearwater, Atha- 
_basea, Slave, and Mackenzie Rivers, and on 
Great Slave Lake, are probably referable to 
the Hamilton formation. 
Since 1868 Devonian rocks have been dis- 
covered or examined by officers of the Geo- 
logical Survey of Canada, and their fossils 
collected at the following localities in this 
region. Inthe Athabasca district, at four 
different exposures on the Athabasca River 
and at one each of its tributaries, the Clear- 
water, Red and Pembina Rivers, by Profes- 
sor Macoun in 1875, by A. 8S. Cochrane in 
[N.S. Vou. X. No. 248. 
1881, by Dr. R. Bell in 1882 and by R. G. 
McConnell in 1890; also at three different 
exposures on the Peace River by Professor 
Macoun in 1875 and by Mr. McConnell in 
1879. In the Mackenzie District, on the 
banks of the Long Reach of the Lower 
Liard River and on the Hay River forty 
miles above its mouth by Mr. McConnell in 
1887, and at four different and rather widely 
distant exposures on the Mackenzie River 
by Mr. McConnell in 1888. 
Most of the fossils from these localities 
that were collected before 1875 have been 
provisionally reported on in the Reports of 
Progress of the Canadian Survey for the 
years in which they were made. Those, 
however, that were collected between the 
years 1875 and 1890, both inclusive, form 
the subject of an illustrated paper, by the 
writer, on ‘The Fossils of the Devonian 
Rocks of the Mackenzie River Basin,’ pub- 
lished in 1891.* This publication, which is 
practically a continuation of Mr. Meek’s 
paper on the same subject, already referred 
to, adds fifty-seven additional species of 
purely marine invertebrata to the previously 
known fauna of these rocks, as under: 
IS PONE eSHelerevercieietoleleisasvelololoiotereleleielolle leila verestete 1 
Com (inclusive of Stromatoporoids)........ 10 
(imtNGIE) “Gop gocoKondodboNdDO00000000 bo00m 1 
Polyzoa (= Bryozoa) 
Brachiopoda... 
Pelecypoda.... 
Gasteropoda . . 
Pteropoda .........-ceeeeeeeees 
Ostracod are nro) -tetevelericielel eletslarerolsiehstelevelereneleren: 
ADM ON Bas cogaansbcgsocpccsconeaobndeos000 
According to Mr. McConnell, a section of 
the Devonian rocks in the Mackenzie dis- 
trict, in descending order, would be some- 
what as follows: 
1. Upper limestone.......... (about) 300 feet 
2. Greenish and bluish shales 
alternating with limestone(about) 500 feet 
* Geological Survey of Canada, Contributions to 
Canadian Paleontology, Vol. I., part 3. 
Cie Ges i oa 
