TABLE OF CONTENTS, XXxi 
Page. 
Sullivan county...372 
Ulster and Greene counties ......372 
Albany, Shenectady, Schoharie and Saratoga counties . 375 
Various local facts stated in reference to contortion and unconformahility, illus¬ 
trated by diagrams.... 375 
Sections^ etc, along the Hudson river..... 375 
Axis from New-York to Baker’s falls.... 375 
Horizontal and slightly inclined strata west of axis, and numerous sections of 
them. 375 
Hudson-river group on the east side of the Hudson... 380 
Introductory remarks on derangements of strata.... 380 
Washington county east of the anticlinal axis... ... 381 
Rensselaer county. 382 
Columbia and Dutchess counties. 385 
Localities recommended for examination.... 385 
Grits of this group, range of.. 385 
Veins of quartz. 385 
Local details of various kinds. 386 
Faults since the drift epoch .. 387 
Contortions, faults, etc. on the shore between Oak-hill and Barnegate. 388 
Cleavage and strata planes make all possible angles. 388 
Various examples ... 389 
2. Utica slate. Synonims. General characters. 390 
General characters west of the axis... 390 
General characters east of the axis... 390 
Range and localities of easy access. 391 
Search for coal, various localities... 391 
Fossils. 393 
Graptolites, localities and descriptions. 393 
Crustacea and testacea, localities and descriptions.... 395 
Flinty slate, localities and descriptions... 395 
3. Trenton limestone. Synonims. 397 
General remarks and characters. 397 
Range. 397 
Marble quarries . 398 
Section between Glen’s-Falls and Sandy-hill. 398 
Description of rocks at Glen’s-Falls. 398, 399 
Section on the Mohawk... 400 
Various localities in Hudson valley. 400 
Fossil remains. 402 
4. Black-river limestone. Synonims. 402 
General description. 402 
[Geol. 1 st Dist.] 8 
