92 C. S. PROSSER DEVONIAN AND SILURIAN ROCKS. 



York, near Morrisville, Madison county. At that time the writer, who 

 was an instructor in the geological department of Cornell university, 

 recognized the value of the data that might be obtained from these well 

 records in giving the thickness and dip of the various terranes composing 

 the series of New York rocks. During the remainder of 1887 and the 

 years of 1888-'89, when test-wells were being drilled at numerous localities 

 in New York, various wells were visited personally and arrangements made 

 with the owners and drillers for securing reliable and complete sets 

 of samples. As a result of these efforts, a large amount of data con- 

 cerning the thickness of the New York geologic formations has been 

 obtained, and two papers describing the sections along the meridians of 

 Cayuga lake and the Genesee river have been published* 



In the present paper it is intended to describe another of these general 

 sections crossing the state in a north-and-south line. The section selected 

 is the one containing the record of wells drilled at Binghamton, Nor- 

 wich, Morrisville, Utica, Chittenango, Tully, Syracuse, Fulton, Sandy 

 Creek and Watertown, and as it is approximately along a line somewhat 

 east of the 76th meridian, with one-half of its length following the Che- 

 nango river valley, it may very appropriately be' designated the section 

 of Central New York. 



Records of the Wells. 



Binghamton Well and Section. — The southernmost well of this series, 

 which is first to be considered, is one drilled at Binghamton, Broome 

 county, New York. This well is located on the farm of ex-Sheriff Brown, 

 one-half mile south of the Susquehanna river and about ten rods from 

 the southeastern corner of the city limits. It was reported by Mr G. 

 M. Kepler as on the hillside about 70 feet above the city proper, which 

 would make its elevation about 940 feet above tide.f 



The oeolooic horizon of the mouth of the well is in the Chemung sta^e, 

 but not at its summit, which is considerably higher. Vanuxem stated 

 that " the Catskill group covers the highest grounds on the south side 

 of the Susquehanna [river]. "J Personal examination in this region 

 shows that Vanuxem was inclined to make the base of the Catskill too 

 low, and that Chemung fossils occur in what he called Lower Catskill. 

 The general order of the faunas and formations of the Chenango valley 



*The Thickness of the Devonian anil Silurian Rocks of Western Central New York. Am. Geol., 

 vo'. vi, October, 1890, pp. 199-2] 1 . 



The Thickness of the Devonian and Silurian Kocks of Western New York, approximately 

 along the line of the Genesee river. Proc. Rochester Acad. Science, vol ii, May, 1892, pp. 49-104. 



tThe altitude of the X. Y., L. E. and W. R. II. station at Binghamton i- state, I by Gannett to be 

 80S feet (Bull. U. S. Geol. Surv., no. 76, p. 52). 



IGeol. New York, part iii, 1S4:>, p. 29G. 



