82 



ROCHES'IKR ACADKMV OK SCIENCE. 



[Jan. II, 



In October, 1890, Dr. ^\'. C. (iouinlock wrote me as follows in 

 reference to the wells of the Warsaw salt district : " The rocks drilled 

 through in all the wells are similar. The rock salt dips to the south- 

 west 40' to the mile and the surface rises several hundred feet from 

 Pearl Creek to Rock Cilen (the Kerr Salt Works). The Corniferous 

 limestone comes to the surface at Le Roy, and the same rock at the 

 B., R. & P. R. R. station [Warsaw] is 1028' down. 'Phe salt lies pretty 

 uniformly at 530' to 550' below this rock. The difference in the 

 depth of the wells is always the surface difference above the Cornif- 

 erous limestone, or ' hard rock ' as the drillers call it. The salt 

 strata are about 80' in thickness." 



About one mile north of the B., R. & P. R. R. station at Warsaw, 

 on the lower side of the track, is the well of the Standard Salt Co., a 

 section of which is as follows : 



Section ()f the Standard Salt Comi'anv's Well. 



Approximate Altitude 1045' '^- ^- (') 



depth. ^^e'ss'T" 



KIND OF ROCK. 



26' 



900 

 1048' 



1505' 

 1545' 

 1649' 



26' Clay. 



874' Shale. 



148' Corniferous limestone. 



457' Limestone ; shale with salt at bottom. (') 

 I St salt at 1488'. 



40' Rock salt. 



104' Red shale or sandstone. (^) 

 Bottom of well. 



FORMATION. 



r Lower 



I Portage. 



J Genesee. 



j Hamilton. 



I. Marcellus. 

 Upper Helderberg. 

 Lower Helderberg. 



1 o 



O 



Cu 

 P 

 crq 

 ^ P 

 ' W 

 P_ 



Orq 

 ■-1 



1 O 



J % 



(I.) Ann. Report Supl. Onondaga Salt Springs for i838, chart No. III. 



(2.) Prof. Bishop gives the " limestone, shale and salt " as 40' and the "rock salt " as 457'. It 

 is evident that there is a mistake in this portion of the section ; but a record of the same well com- 

 municated to me by Mr. Smith gives the section as above, so it is quite clear that the printer trans- 

 posed the figures in Prof. P.ishop's section (5th Ann. Repi. State (Jeologist [of New York] for 1885, 

 p. 21;. Dr. Engelhardt gives the "limestone, shale and salt " as 440' and the " rock salt " as 57', 

 (Ann. Repi. Supt. Onondaga Salt Springs for 1888, chart No. II) ; while on p. 18 it is stated that the 



