1892.] PROSSER THE GENESEE SECTION. 69 



The next well record, that is of value for this general section, is 

 that of one drilled in 1883, near Castile, Wyoming Co., New York. 



At Portage Falls, near Portageville, the top of the Portage sand- 

 stones, which form the summit of the Portage stage, has an approxi- 

 mate altitude of 1200'. (') Castile is approximately four miles north 

 of Portageville, and if the dip in this region be about 50' to the mile 

 as stated by Professor Williams, (^) then the top of the Portage sand- 

 stone at Castile would be in the neighborhood of 1400' A. T. The 

 altitude of the N. Y., L. E. & W, R. R. station at Castile is 1400', (') or at 

 the "Summit" 1431', which would be about the horizon for the top of 

 the Portage. This probable geological horizon for the moilth of the 

 Castile well is confirmed by the statement of Professor Irving P. 

 Bishop, who stated that it " started in the sandstones of the Upper 

 Portage, * * * * being also at nearly the highest elevation of 

 the Erie R. R. between New York and Buffalo. It is also the deep- 

 est well yet sunk in the salt district." (*) 



Mr. Geo. H. Bush, of Castile, furnished me with a partial record 

 of this well together with some specimens of drillings. A section of 

 this well is given by Professor Bishop (') and from this data, in con- 

 nection with the information furnished by Mr. Bush, the following 

 section has been compiled. 



(i.) Bull. U. S. Geol. Sui'v., No. 41, p. 52 

 (2.) Ibid., p. 103. 



(3.) Gannett, in Bull. No. 5, U. S. Geol. Surv., p. 205, gave Castile as 1401' and Castile summit 

 1431'. In the 2d Ed., Bull. No. 76, p. 78, Castile is given as 1431'. In Macfarlane's Am. Geol. Railway 

 Guide, 2d Ed., p. i2q, Castile is given as 1401'. October loth, iSgi, Mr. Carl W. Buchholz, Civil 

 Engineer of the N. Y., L. E. & W. R. R. Co. gave me the following altitude of stations, taken from 

 the lithograph profile of the " Erie " R. R. 



Portage 1.314' 



Castile 1400' 



Silver Springs 1406' 



Rock Glen 1331' 



Warsaw 1326' 



The altitude of Silver Springs and Rock Glen is not given in Bull. U. S. Geol. Surv., No. 76. 

 November 7, 1891, Mr. Geo. H. Bush of Castile, wrote me thatthe mouth of the Castile well is 

 about fifty rods from the N. Y., L. E. and W. R. R. station and about 10' lower than the R. R. track; 

 which would make the altitude of the mouth of the well about 1300'. 



(4.) Rept. on the Salt Fields of western New York. In 5th Ann. Report of the State Geologist 

 [of New York] for the year 1885. Assembly Doc. for 1886, No. 105, p. 24. 



(5.) Ibid., pp. 25, 26. The section is copied by Dr. Engelhardt in the Ann. Rept. Supt. Onon- 

 daga Salt Springs for 1888. Assembly Doc. for i88g. No. 43, Charts No. II and IV ; also, see p. 19. 



