132 PROCEEDINGS OF THE ACADEMY OF [1890. 



GEOLOGY OF ARTESIAN WELLS AT ATLANTIC CITY, N. J. 



BY LEWIS WOOLMAN. 



During the past three years there have been drilled for the Con- 

 sumers' Water Company at Atlantic City, IST. J., four artesian wells. 

 These are of various depths as will be more particularly noticed further 

 on. As the work progressed I have been studying it from a geological 

 stand-point, believing that a careful record of the succession of strata 

 penetrated and of their included fossils would, in connection with 

 information yet to be obtained by developments at other localities, 

 lead to valuable results. Among these would be the construc- 

 tion of a true vertical section across the State from Camden to 

 the sea, showing the amount of dip and the thickness of each of the 

 various Quaternary (?), Miocene, Eocene and Cretaceous beds includ- 

 ing also the determination of the number and location of the 

 different water-bearing strata. 



"Whatever results have been arrived at, their attainment is due 

 primarily to the co-operation of three members of the company, Dr. 

 T. K. Reed, Jos. H. Borton and F. Helmsley, who have afforded 

 every facility for geological investigation. Credit is also due J. H. 

 Moore, contractor for the first three wells and P. H. & J. Conlin, con- 

 tractors for the fourth well, for much information and for the care they 

 and their assistants have taken to preserve specimens every few feet. 

 These they placed in small dairy salt sacks with Dennison's shipping 

 tags attached, on which they marked the depth and description of 

 material. In scientific circles thanks are due Prof A. Heilprin for 

 valuable assistance in paleontology and geology, to C. Henry Kain 

 and his co-laborer, E. A. Schultze, for authoritative identification of 

 diatoms, to Dr. D. B. Ward of Poughkeepsie, N. Y., for photo-micro- 

 graphs of the same which have aided the author in their study, and to 

 C. L. Peticolas of Richmond, Va., for cleaning and separating the 

 diatoms from numerous specimens of earths. 



Well No. 1 is situated at the S. E. corner of ]\Iichigan and Arctic 

 Avenues ; the other wells are grouped within a radius of 100 feet of 

 each other upon a knoll within the meadows about one-fourth of a mile 

 nearly N. W. of No. 1. 



Well No. 1 was sunk to a depth approximating 1150 feet. At 

 about 1100 feet a plentiful supply of fresh water flowed to five feet 



