XX 
TABLE OF CONTENTS. 
Page. 
Brothers. 177 
Hikers, &c. 177 
Staten island. 178 
New-York island. 178 
Dr. Gale’s observations. 178 
Westchester county. 182 
Putnam county... 184 
Distribution on mountains and in valleys. 184 
West-Point. 184 
Ancient shores. 185 
Boulders referred to sources. 185 
Orange county. 185 
Dr. Horton’s observations. 185 
Smith’s Clove. 185 
Mamakating valley. 187 
Schoharie valley. 187 
Saratoga county ....... 187 
Dutchess county... 188 
Columbia county... 188 
Delaware county.. 189 
Other parts of the State of New York... 189 
Ohio and western States. 190" 
New-England and middle States and Territories. 193 
Canada and Europe...... 195 
Smoothed and scratched surfaces of rocks ...... • • 198 
General remarks on this subject... 198 
Examples in the First Geological District. 199 
Other parts of New-York. 204 
Pennsylvania, Ohio, and western States and Territories.204 
New-England.. 205 
Remarks of individuals—Hon. W. Thompson. 207 
Mr. Appleton. 207 
Mr. Dobson .. ..207 
Observations on this subject in Sweden and Norway by Berzelius and Brongniart.. 208 
Scotland, by Sir James Hall. 208 
By Lieut. Col. Trurie. 209 
Island of New-York, Prof. Gale. 209 
Summary of the facts of, on the drift deposits. 211 
Pot-holes—Aux Liards, Iowa. 213 
Little-Falls, New-York. 213 
Oswegatchie, New-York. 213 
Grafton, New-Hampshire. 213 
