32 G. FE. Wright—Niagara River and the Glacial Period. 
I publish these results, although incomplete in many re- 
spects, because the facts as far as made out are of interest and 
because I shall not be able to resume the investigation till the | 
winter of 1884 and ’85. I hope, however, to add to this a 
second paper which will serve to clear up some of the doubtful 
points. In closing, I take pleasure in expressing my thanks to 
Professor George J. Brush, for his kindness in providing me 
with most of the material for this investigation, and to Pro- 
fessor O. D, Allen and Mr. George F. Kunz, for the material 
which they furnished. 
Sheffield Scientific School, March, 1884. 
Art. V.—The Niagara River and the Glacial Period eg 
Professor G. F. WRIGHT. 
HAvine recently made a study upon the ground of the 
Niagara gorge, I will give as briefly as possible such additional 
facts to those already well known as my glacial studies specially 
led me to observe. The accompanying plate (prepared to illus- 
trate an article on the subject in the Bibliotheca Sacra for April, 
1884) shows ata glance thesituation. From the falls to Queens- 
ton the distance is about seven miles, and the gorge continuous, 
averaging about three hundred feet in depth and eight hundred 
feet in width, though in some places it is thirteen hundred feet 
wide. At Queenston the river emerges from the gorge and pur- 
‘sues its way to the lake through a low and level region. Follow- 
‘Champlain period, continues for some distance, at least, on the 
high lands as a ridge overlying the till, like the lake ridges 
of Ohio. Upon going southeast from St. David’s towards the 
whirlpool, one finds these accumulations of sand and gravel 
merging not far from the watershed in a deposit of true till— 
Bey Pvc ah a Blt ee ate a ere 
Sy ya Ae PRE oy ce oetiee ii geot Mee Sort bat ato 
