©34 THE, JOCRNALVORPNGBROLOGY: 
near by, proving especially interesting ; since thin layers of mat- 
ted deciduous leaves occur in it. One of these localities is at 
the shore of a pond a mile above the brickyard, so that the fos- 
sil-bearing sands and clays have been shown to extend for three 
miles along the valley of the Don. Judging by the position of 
these beds with reference to the lake, the stream in which they 
were formed had a much more rapid fall than the present slug- 
gish river. The lowest fossil bed in the upper part of the valley 
Quarry at Taylor’s brickyard, Don Valley, Toronto. The section shows the Hud- 
son River shale; the lowest till resting on it (dark); the fossiliferous stratified sand 
and clay ; the middle till just beneath the grass at the staging ; and the upper strati- 
fied unfossiliferous clay in the much foreshortened upper quarry. The photograph is 
‘by Dr. Ellis, of the School of Practical Science, Toronto. 
is about forty feet above the lake; at the Convict Cutting ten or 
fifteen feet ; while at the cutting for the Don improvements, near 
the mouth of the present river, fossils were found several feet 
‘below the level of Ontario. 
The localities most productive in fossils are the brickyard and 
the Convict Cutting, and a brief description of them may be of 
