New York State Museum. 59 



Feet. 



Slate and shale 200 



Small vein of gas at 775 feet. 



Dark slate, like roofing slate 100 



Light bine slate, some gas 100 



Dark bine slate, some gas 100 



Slate and shale 620 



Hard dark limestone 80 



Hard granite (?) 60 



Very hard lime rock 240 



Solid salt 60 



Hard lime 80 



I have given the record exactly as received. It is well to 

 remember that " slate" in the driller's vernacular stands for 

 either slate or shale — here for shale. 



The " granite," too, is probably, almost certainly, the lower 

 part of the Corniferous limestone. 



In its lower part, this record agrees with the general run of 

 record in western New York. Above the salt there are usually 

 25 to 200 feet of shales — sometimes omitted — then 200 

 to 300 feet of (L. H.) limestones ; then usually a thin, soft layer 

 in the place of the Oriskany ; then from 140 to 150 feet of Corni- 

 ferous. The Hamilton proper below Genesee shale in the 

 Genesee valley is about 600 feet. (See in my salt report of 1885 

 remarks on the Lackawanna well.) 



The 248 feet above the salt are probably partly Salina ; but as 

 we have no certain knowledge of the division between the two 

 periods it may be best to put it down as Lower Helderberg and 

 Salina. If we attach only one name, it should be Lower 

 Helderberg. 



Limestone lies directly upon the salt in several wells where we 

 have been obliged to call it so. The 60 to 80 feet above I think 

 are without doubt Corniferous and the 620 above are certainly 

 Hamilton. Whether the shales above belong in part to the 

 Hamilton proper I do not pretend to say. 



This is a very important record, as it extends our knowledge 

 of the salt bed some miles south. By comparing this with the 

 Nunda record the inference that the salt bed is a syncline with 

 the deepest part in the Ithaca, Castile line, is very strong. 



