590 Annals of the Carnegie Museum. 



two miles north of Mystic. The most western outcrop of the Chazy con- 

 glomerate is on the road from Standbriclge to Bedford. Most of the pebbles 

 show that they were derived from the Calciferous of the Phillipsburg and 

 Saint Armand section, and the fossils in the paste show that the rocks them- 

 selves are the equivalents of the Chazy." 



1894. KiiMi', J. F. Preliminary report on the geology of Essex County, New York. 



New York State Museum, 47th Annual Report, pp. 627-666. 



1895. CusHiNG, II. P. The Faults of Chazy Township, New York. Bulletin of 



the Geological Society of America, Vol. 6, pp. 285-296, pi. 12. 



The writer gives an excellent account of the structure of the formations 

 exhibited at Chazy, New York, with map. 



1895. Kemt, J. F. The Geology of Moriah and Westport Townships, Essex 



County, New York. Bulletin of the New York State Museum, Vol. 3, No. 

 14, pp. 325-355- 



Mentions the occurrence of the Chazy in these townships and gives geo- 

 logic map. 



1896. Ami, H. M. Notes on Some of the Fossil Organic Remains Comprised in 



the Geological Formations and Outliers of the Ottawa Palreozoic Basin. 

 Transactions of the Royal Society of Canada, second series. Vol. 2, p. 151. 

 Lists some of the characteristic Chazy fossils. 



1S96. Brainerd, Ezra, and Seely, H. M. The Chazy of Lake Champlain. 

 Bulletin of the American Museum of Natural History, \'ol. VIII, p. 305. 



The authors give detailed sections and geological maps of the Chazy 

 formation at Valcour Island, Isle La Motte, and Crown Point. 



1S96. Ells, R. W. The Palaeozoic Outliers in the Ottawa River Basin. Transac- 

 tions of the Royal Society of Canada, Vol. 2, second series, pp. 137-150. 



The Chazy is separable into two portions, the lower shaly and sandy, 

 the upper largely calcareous. The lowest consists of a coarse greenish-gray 

 grit or sandstone, in some places conglomeratic in character. These have a 

 thickness of only a few feet, and graduate upward into fine arenaceous 

 beds, with a considerable thickness of shales. Intercalated beds of lime- 

 stone occur in the upper part, which gradually becomes more calcareous 

 until the formation is essentially a limestone. At Aylmer the thickness of 

 the lower portion of the Chazy is not far from loo to 1 20 feet. 



The thickness of the upper or calcareous portion varies greatly at different 

 places, ranging from 50 to nearly loo feet. In its upper part the limestones 

 become nodular and contains beds of grayish color which are largely com- 

 posed o{ Rhynchonella plena. 



The passage from the upper beds of the Chazy to the overlying beds of 

 Birdseye and Black River appears to be gradual and to present no well- 

 defined break in the succession of the strata. 



1896. White, Theodore G. Geology of Essex and Willsboro Townships, E.ssex 

 County, New York. Transactions New York Academy of Science, \'ol. 13, 

 pp. 214-233, 1896. 



