430 Canadian Record of Science. 
The occurrence of so many species of siliceous sponges in 
great abundance in these beds is a new and interesting fact, 
and indicates that at certain times the floor of the Siluro- 
cambrian sea has been amply stocked with organisms of 
this kind, scattered spicules of which abound in layers in 
which specimens retaining their form have not been found. 
The paper will be illustrated with photographs and figures 
of the species. 
New Fossin PLANTS FROM THE NORTH WEsT. 
By the same Author. 
This paper is a continuation of those by the same author 
in previous volumes of the Transactions of the Society. It 
relates to an interesting collection made by Mr. R. C. 
McConnell, B. A., of the Geological Survey of Canada, 
on the McKenzie River, and to specimens obtained by 
Mr. T. C. Weston, of the same survey on the Bow River. 
The species all belong to the horizon of the Upper 
Laramie, and serve to show the similarity of the flora of 
this series in the McKenzie and Bow Districts with that 
of other parts of the N. W. Territorics, of the western parts 
of the United States, of the Hebrides, of Alaska, Spitzbergen 
and Greenland. The paper notices more especially the pre- 
vious publications of Heer, on the McKenzie flora, the addi- 
tional species obtained by Mr, McConnell, the geographical 
distribution of these species, and their Lower LHocene 
facies. 
Notes oN ERIAN (DEVONIAN) PLANTS. 
By D. P. PENHALLOW. 
(Abstract.) 
The Paper read under the above title gives a continuation 
of Studies on Nematophyton, which were presented to the 
Royal Society at its meeting in 1888. The author gives a 
few additional observations upon the principal species CV. 
