582 NEW YORK STATE MUSEUM 



of tHe same nature as that preivioiisly meaitioned. Scattered 

 all tkroTigli the clay are cobbles of limestone. The upper strata 

 are loamy and contorted, while underneath in the yellow clay, which 

 is very tough, the stratification is almost entirely obliterated. At 

 the next bank, also belonging to Lang, there is 6 feet of overlying 

 sand and gravel. Scattered through the clay are several boulders of 

 Calciferous eandrock, sandstone, black crystalline limestone and 

 gneiss. The overlying material is mostly unstratified and many of 

 the pebbles are 8 inches in diameter. At the bank of J. T. Moore 

 the clny is very tough, and the stratification is obliterated in 

 spots. Several ice-scratched boulders of light blue limestone, sand- 

 stone and Calciferous sandrock were found in the clay. In Moore 

 & Lahey's bank the clay is tough and coimpressed, similar to the 

 other yards. It likewise contains scratched boulders, specially of a 

 light blue crystalline limestone. Over the clay is 2 to 4 feet of 

 coarse sand and gravel. 



In the west side of the 'New York, Ontario & Western railroad, 

 where it branches off from the West Shore railroad, a cutting in the 

 hillside shows a cross-bedded, yellowish sand and loamy clay with 

 patches of gravel and cobblestones in it. roUowing along the track 

 a few hundred feet we come to the clay bank of C. A. and A. P. 

 Hedges. This shows an interesting section of blue clay overlain by 

 50 to 60 feet of cross-bedded delta deposits of sand and gravel. 

 The clay layers are obliterated in spots and in others much con- 

 torted. To the north of Hedges's yard in the railroad cutting the 

 clay is overlain by 5 to 6 feet of sand and coarse stones, unstratified. 

 Following up the track on the left side just beyond the crossing 

 of the road from Canterbury toi New Windsor the embankment of 

 sand and coarse gravel is cross-stratified, being a portion of the 

 delta of Moodna river. The character of this embankment changes 

 after about 400 feet to unstratified drift, containing boulders. This 

 underlies the delta material. The upper terrace at Cornwall is un- 

 derlain by boulder drift. 



Its structure is well shown along the track at Cornwall. Clay 



