260 NEW YORK STATE MUSEUM 



Devonian. 



PLATE FACING PAGE 



LXXL Corniferous Limestone, Cayuga Creek, Bellevue, Erie county. 



The surface shows the dissolving action of water 160 



LXXII. Marcellus and Hamilton Shales, Athol Springs, Shore of Lake 



Erie, Erie county 162 



LXXIII. Devonian Shales, Cliff of ; Shore of Lake Erie, near Bay 



View, Erie county 162 



LXXIV. Devonian Shales, Exposure of; Gorge of Eighteen Mile 



Creek, Erie county : 162 



LXXV. Upper Devonian Rocks, Gorge of Eighteen Mile Creek, near 



Lake View, Erie county 162 



LXXVI. Hamilton Shales, Shore of Lake Erie, at the Mouth of Eigh- 

 teen Mile Creek, Erie county 162 



LXXVII. Devonian Eocks, Wanakah. Shore of Lake Erie, Erie county 162 

 LXXVIII. Devonian Strata, Honk Falls, near Napanock, Ulster county 162 

 LXXIX. Devonian Shales, Eroded ; Shore of Lake Erie, Mouth of Pike 



Creek, near Derby, Erie county 164 



LXXX. Portage Shales, Hamilton and ; Shore of Lake Erie, Mouth of 



Pike Creek, near Derby, Erie county 164 



LXXXI. Lower Portage Shales. Triphammer Falls, Ithaca, Tompkins 



county 164 



LXXXTI. Portage Group, Black Shales, Pike Creek, near West Fails, 



Erie county 164 



LXXXIII. Portage Group, Shore of Lake Erie ; Clay Iron Stone Con- 

 cretions 164 



LXXXI V. Wittemberg Range, View of the; Southern Catskills, from a 

 point one-half mile east of Shokan Station, Ulster county, 



looking west 164 



LXXXV. Catskill Mountains and the Hudson River Valley; Relief 



Map of the Eastern 164 



XCIV. Corniferous Limestone, Glacial Scratches on the ; Cheek- 



towaga, Erie county 176 



CXI. Corniferous Limestone; Road Metal and Paving Block 

 Quarry of the Barber Asphalt Co. Near Humboldt Park- 

 way, Buffalo, Erie county 206 



Triassic. 



LXXXVI. Triassic Conglomerate, Stony Point, Rockland county 172 



LXXXVII. Palisades of the Hudson River, from Fort Lee, N. J. View 



North ward Along the 172 



LXXXVIII, Palisades of the Hudson, The; View Northward from Engle- 



wood Cliffs, N. J 172 



LXXXIX. Triassic Diabase Exposed in a Cut for the Orange Mountain 



Cable Road, Orange, N. J 172 



