EXPLANATION OF THE PLATES, 
Fig. 10. Land-slide on the west side of West Neck, Coldspring harbor. 
11. Section of a clay bed, etc. at Coram. 
12. A fault in clay and sand beds, at West neck. 
13. Land-slide, and contorted strata of sand and clay. West neck. 
14. Irregular deposition of strata. 
15. Unconformable strata at Brown’s point. 
16. Section along the north-northwest side of Lloyd’s neck, 
PLATE V. 
Fig. 1. Thick gneiss, bedded and stratified: Phillip’s quarry, one mile and a half east- 
northeast of West-Point. 
2. Marble lying on granite, at Sparta, by the brick-yard. 
3. Section at Tompkin’s quarries, one mile above Stony point, showing the junction 
of talcose slate, with limestone and talcy limestone glazed with anthracite. 
4. Columnar and mural escarpment of trap and sandstone near Verdrietje hook, 
5. Columnar trap, with a dyke and interstratified mass of trap in sandstone, one and a 
half or two miles south of Haverstraw. 
6. Palisades, and slope of debris. 
7. Section of the Denny iron ore bed, capped by gneiss ; Phillipstown, Putnam county. 
8. Section of the same, 200 yards south of the preceding. Branches and strings from 
the mass reach the surface. 
9. Section of the Forest of Dean iron mine, Cornwall, Orange county. 
10. Section of the Patterson and other ore beds, Monroe, Orange county. 
11. Trap dykes in white limestone. Duck-cedar pond. Orange county. 
IP. Shewing the lateral heaves by faults, at the same locality. 
IP'. Topographical sketch of the vicinity. 
12. Section of the Simewog vein of magnetic iron ore: Southeast, Putnam county. 
13. ' Section of the Upper clove, from Skunnemunk to the Highlands. 
14. Section of Townsend’s ore bed, near the preceding section. Orange county. 
PLATE Vr. 
Fig. 1. Section of some of the Catskill mountain rocks, at the stone bridge four or five miles 
east of Durham, Greene county. 
2. Section of the same rocks, at Stratton’s falls, Roxbury, Delaware county. 
3, and 4. Showing the water-lines of deposition, or oblique lamination of sandstones in 
the Catskill mountain rocks. 
5, and 6. Showing the same in the calciferous sandstone near Whitehall, Washington 
county. 
7, Section from the Shawangunk mountain to the “ Coal mine,” on the Sandberg 
mountain, Sullivan county. 
