90 The American Geologist. February, 1894 
clay containing boulders, especially of limestone, beautifully 
polished and striated on some faces, form the uppermost layer, 
and rest upon the same thick bed of finely stratified hluish- 
gray day observed at the quarry. 
The Davenport ridge, really a plateau rising 30 or 40 feet 
above the plain to the smith, is found, where laid open by cut- 
tings for roads or railways, to consist in its upper part of un- 
stratified sand with numerous pebbles and boulders distinctly 
polished and scored, the whole evidently a glacial deposit of 
somewhat different materials from those of the till at the bot- 
tom of the series. These glacial sands once extended much far- 
ther to the south than now. perhaps reaching the present lake 
shore, but wave action has washed them away, leaving behind 
the large boulders once so thickly scattered over the site of 
Toronto, though now mostly removed for road-making pur- 
poses.* 
Comparing the section just given with one kindly furnished 
by Dr. Brodie from a locality now buried from view, at the Win- 
chester street bridge, there are below the level of the lake, 
restingon Hudson River shale, six feet of uncertain materials, 
live feet of a deposit containing leaves, wood and Cyclas 
goniobasis ( ? ), and five feet of till with boulders differing from 
those found higher up. The upper part of this bed rises a 
little above the level of the lake. Upon this follow first a 
lacustrine deposit, say fifteen feet, with wood, leaves, ('yclas 
and Unios; next, glacial day with Xitry large boulders of 
gneiss, etc.: and finally lake shore sand, not continuous. 
A somewhat different account of the section is given by 
Mr. Townsend, as quoted by Sir Wm. Dawson. f Reversing 
the order in which Mr. Townsend arranges the series, we find 
blue till restingon the Hudson River beds; then sixteen feet 
of alternating sand and dark-colored clay with freshwater 
shells and wood; three feet of ferruginous sand with argilla- 
ceous nodules (one containing a maple leaf) : twenty-four feet 
of tough, stratified blue ''Erie day:" and finally twenty-six 
feet of fine, light-colored sand, with layers of day at bottom. 
The lowest fossiliferoiis deposit, mentioned by Dr. Brodie 
*Clacial Phenomena of Canada, etc., Prof. Ramsey, Can. Nat. and 
Geol., 1859, pp. 328. He gives a section of Toronto drift, showing boul- 
ders. 
fBull. Geol. Soc. Am., vol. i, p. 315. 
