The Devonian System in Canada. — Wliiteaves. 237 
shales of the Bow river, collected by Mr. McConnell in 1885, 
that were provisionally referred to the Devonian genus 
Clymenia on page 18 D of his report, do not show clear in- 
dications of either septa or siphuncle, and may, therefore, be 
casts of a discoidal gasteropod. On the other hand, in 1885 
Mr. McConnell obtained a few specimens, that are unquestion- 
ably referable to Atrypa reticularis, from the Rocky mountains 
at the Pipestone Pass falls, and from the first range on the 
North Saskatchewan. It was from the mountains at the source 
of the North Saskatchewan that the specimens were collected 
by Sir James Hector which Salter referred to A. reticularis. 
In 1898 Mr. J. McEvoy collected a few fossils at several 
localities in the first foot-hill of the Rocky mountains, in Al- 
berta, where it intersects the valley of the Athabasca. These 
fossils have not yet been very critically examined, but those 
from two of these localities are probably Carboniferous, and 
the remainder either Carboniferous or Devonian. 
In 1868 Mr. F. B. Meek published a paper entitled "Re- 
marks on the Geology of the Valley of Mackenzie River, with 
figures and descriptions of Fossils from that region, in the 
Museum of the Smithsonian Institution, chieflv collected bv 
the late Robert Kennicott, Esq.," in the first volume of the 
Transactions of the Chicago Academy of Sciences. The pa- 
per consists of a concise history of the discovery of Devonian 
rocks at various localities in the Athabasca, Mackenzie river 
and Yukon districts, by Sir John Franklin, Sir John Richard- 
son, Mr. A. K. Isbister, major R. Kennicott, Mr. R. W. Mc- 
Farlane, Mr. B. R. Ross and the Rev. W. W. Kirby, followed 
by descriptions or identifications of thirty-two species of De- 
vonian 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, Athabasca, Slave, and Mackenzie rivers, 
and on Great Slave lake, are probably referable to the Hamil- 
ton formation. 
Since 1868 Devonian rocks have been discovered or ex- 
amined by officers of the geological survey of Canada, and 
their fossils collected, at the following localities in this region. 
In the Athabasca district, at four different exposures on the 
Athabasca river and at one each on its tributaries, the Clear- 
water, Red and Pembina rivers, by professor Macoun in 1875, 
