Published monthly by the 



New York State Education Department 



BULLETIN 40I 



MAY I907 



New York State Museum 



John M. Clarke, Director 



Bulletin 107 

 GEOLOGY 12 



GEOLOGICAL PAPERS 



PAGE 



Postglacial Faults of Eastern 

 New York. J. B. Woodworth 5 



Stratigraphic Relations of the 

 Oneida Conglomerate. C. A. 

 Hartnagel 29 



Upper Siluric and Lower De- 

 vonic Formations of the Skun- 

 nemunk Mountain Region. C. 

 A. Hartnagel 39 



Minerals from Lyon Mountain, 

 Clinton county. Herbert P. 

 AVhitlock 55 



On Some Pelmatozoa from the 

 Chazy Limestone of New 

 York. George Henry Hud- 

 son 97 



Some New Devonic Fossils. 

 John M. Clarke 153 



An Interesting Style of Sand- 

 filled Vein. John M. Clarke. 293 



The Eurypterus Shales of the 

 Shawangunk Mountains in 

 Eastern New York. John M. 

 Clarke 295 



A Remarkable Fossil Tree Trunk 

 from the Middle Devonic of 

 New York. David White. . . 327 



Structural and Stratigraphic 

 Features of the Basal Gneisses 

 of the Highlands. Charles 

 P. Berkey 361 



Index 379 



ALBANY 



NEW YORK STATE EDUCATION DEPARTMENT 

 I907 



Mi67m-ji6-i 5 oo Price 90 cents 



