68 ROYAL SOCIETY OF CANADA 
TERTIARY OF THE HORSEFLY RIVER, B.C. 
One small collection was marked “ Horsefly River, B.C., G. M. 
Dawson, 1894.” It embraced only eleven species, but in 1901, Mr. 
Thomas Drummond brought to me a small specimen of fossil wood 
from the Miocene Mines at that locality, and it has been added to the 
collection. The species recognized are as follows: — 
GLYPTOSTROBUS EUROPÆUS, Heer. 
Represented by small fragments of leafy branches only. 
TAXODIUM DISTICHUM, MIOCENUM, Heer. 
Represented by several characteristic, leaf-bearing branches. 
SEQUOIA LANGSDORFII (Brongn.), Heer. 
Represented by one fairly well preserved cone and by several leafy 
branches. 
PSEUDOTSUGA MIOCENA, n. SP. 
(Plate XV. and XVI.) 
The specimen representing this species is a small fragment of 
a stem secured by Senator R. H. Campbell, of Cariboo, B.C., and for- 
warded through Mr. Thomas Drummond in 1901. It was obtained 
from Cariboo Mine, on the Horsefly River, at a depth of 400 — 500 
feet, where there is reported to be a large amount of material often- 
times representing tree trunks between two and three feet in diameter. 
Much of the material is carbonized. The deposit in which it occurs 
is described as a white quartz gravel resting upon a stratified and 
indurated clay. 
The specimen placed in my hands was only a few centimeters in 
length. A small portion was carbonized and had the aspect of cortical 
structure, but under the microscope it shows no details whatever. The 
principal portion of the specimen had the appearance of a decorticated 
