CHAPTER XXV

NIAGARA FALLS A CLOCK OF RECENT GEOLOGICAL TIME

Features in and about the Niagara gorge—The drilling of the gorge—The present rate of recession—Future extinction of the American Fall—The captured Canadian Fall at Wintergreen Flats—The Whirlpool Basin excavated from the St. David’s gorge—The shaping of the Lewiston Escarpment—Episodes of Niagara’s history and their correlation with those of the glacial lakes—Time measures of the Niagara clock—The horologe of late glacial time in Scandinavia—Reading references 352