252 
Aug. F. Foerste 
the areas northwest of Lake Ontario, while permitting more 
ready migrations from the province of Quebec. 
Nevertheless, there are evidences of the migration of Lorraine 
faunas even into Ontario. It is probable that the Whiteavesia 
pholadiformis fauna, just beneath the undoubted Richmond 
faunas, in the vicinity of Streetsville, and farther northwestward 
in Ontario, was connected with the Bennett bridge fauna, on the 
upper part of the Salmon River, in Oswego county. New York. 
Moreover, at the quarries on the Don River, in the eastern part 
of Toronto, Trinucleus, Catazyga, and Leptaena occur in an asso- 
ciation suggesting the lower part of the Nicolet river section, in 
the province of Quebec, although Leptaena, so far, has not been 
found by me in the Lorraine of New York. Leptaena tenuistriata 
was listed by Walcott from the upper Lorraine fauna, estimated 
by him to have a vertical distribution of 500 feet beneath the 
Oswego sandstone, along the south branch of Sandy creek, Jef- 
ferson county. New York, but he lists also Orthis biforata, and 
therefore his specimens may, in part, have been erratic. The 
bryozoans of this Don river section were identified by Dr. R. S. 
Bassler with Eden and lower Maysville forms. 
It is evident that the New York Lorraine section is a much ab- 
breviated representative of the Nicolet river section. No doubt, 
considerable parts of the Nicolet river section will be found entirely 
missing in New York. The apparently entire absence of Proetus 
and Leptaena in the New York Lorraine, in view of the great verti- 
cal range of these fossils in the Nicolet river section, is significant in 
this direction. In view of these facts there is room for abundant 
future investigations. 
The present paper began with a study of certain faunas, be- 
longing to the Geological Survey of Canada, which had been col- 
lected in the vicinity of the Riviere des Hurons and Chambly 
village, east of Montreal, in the province of Quebec. The ma- 
terial under investigation was increased by collections made by 
the writer at numerous points in the province of Quebec, under 
the auspices of the Geological Survey of Canada. In the progress 
of these investigations it was found desirable to make a special 
study of the forms described by Hall from the Lorraine of New 
York. The following pages include a part of the results of these 
various studies. They differ greatly in value, according to the 
