8 
CONTENTS. 
Page. 
Cayuga lake,. 239 
Ontario lake,. 240 
Oneida lake,. 241 
Onondaga lake,. 241 
Lake Sodom,. 242 
Scratches and furrows upon water-worn rocks,. 244 
Mounds, &c. 247 
CHAPTER X. 
Brief account of the Rocks, &c. in the order of their superposition, beginning with the lowest rock 
in each of the thirteen counties, and the half of Tompkins county, which compose the third 
district: 
1. Montgomery, including Fulton county,. ... 249 
2. Otsego county,. 253 
3. Herkimer county,. 255 
4. Oneida county,. 259 
5. Lewis county,. 264 
6. Oswego county,. 270 
7. Madison county,. 271 
8. Onondaga county,. 277 
9. Cayuga county,.«....,. 285 
10. Cortland county,.,.. 289 
11. Chenango county,. 292 
12. Broome county,. 294 
13. Tioga county,. 296 
14. Tompkins county, the east half,. 298 
CHAPTER XI. 
Explanation of the Map; with some observations, etc. upon those parts of the two lower sections of 
the Map, which pass through the district,. 300 
CHAPTER XII. 
Of the rocks collected for the State and for the Colleges,. 304 
Closing finally with a wood-cut of the Hamilton agelacrinite, (described at page 158,). 306 
