214 



SCIENCE. 



[N. S. Vol. XVIII. No. 450. 



13. Very black sand and gravel, probably 



stained with manganese dioxide 0.2 



14. Coarse Avhite sand and yellow clayey sand 



horizontally though rather irregularly 

 bedded; the bedding lines being darker 

 and rather more clayey than the rest. . 18 



Mr. M. L. Fuller has found in the supposed 

 morainic hills near Old Westbury, covered 

 by only two feet of morainic deposits, gravel 

 beds which are clearly of the same age as 

 those capping the West Hills, a conclusion 

 which is further supported by a rather com- 

 plete series of samples from a well near this 

 point obtained by Mr. Isaiah Bowman. Mr. 

 Bowman has also found a section near the top 



At the heads of all the deep reentrant bays 

 on the north shore there are many compara- 

 tively shallow flowing wells which seem to 

 owe their origin to the steepness of the slope 

 of the water table at these places, and to the 

 difference in the resistance oii'ered to the pas- 

 sage of water through the sands and through 

 an open pipe, as well as to local clay beds. 

 There are, however, a number of compara- 

 tively deep wells which are decidedly interest- 

 ing in the face of the positive statement that 

 a catchment area in Connecticut for wells 

 on Long Island is impossible. Mr. Bowman 

 has assisted in the collection of the following 

 data regarding these wells: 



Peacock Point. 



C. 0. Gates 230 feet. 



G. 0. Gates 210 " 



C. 0. Gates 225 " 



W. D. Guthrie 340 " 



Mill Neck. 



Irving Cox 330 " 



Bayville. 



Dr. 0. L. Jones 276 " 



Centre Island. 



A. K. Wetmore 318 " 



Colgate Hoyt 320 " 



S. T. Shaw 292 " 



C. S. Sherman 351 " 



G. M. Fletcher 370 " 



G. C. MacKenzie 379 " 



Lloyds Neck. 



Dr. 0. L. Jones 248 " 



Elevation approximately 6 feet above high tide. 



Flows 30 gallons per minute. 

 Elevation approximately 10 feet. Flowed when 



first completed 40 gallons per minute. Is now 



being pumped. 

 Flows 10 gallons per minute. 

 Elevation about 10 feet. Flows 10 gallons per 



minute. 

 Elevation about 10 feet. Flows 72 gallons per 



minute. 

 Flows. 



Elevation approximately 3 feet. Flows 25 gal- 

 lons per minute at high tide. 



Elevation approximately 4 feet. Flows. 



Elevation approximately 5 feet. Flows 5 to 6 

 gallons at high tide. Flows slightly at low 

 tide. 



Elevation approximately 4 feet. Flows 30 gal- 

 lons at high tide, 20 at low tide. 



Elevation approximately 10 feet. Flows 25 to 30 

 gallons at high tide. 



Elevation approximately 4 feet. Flows 75 gallons 

 at high tide, 45 at low. 



Elevation approximately 5 feet. Flows 5 gallons 

 at high tide. 



of these hills which shows a very marked non- 

 conformity between the thin coating of recent 

 till and these underlying yellow- and orange- 

 colored gravels. It is believed that the strati- 

 fied gravel beds which Woodworth found cap- 

 ping Harbor Hill, near Eoslyn (elevation 384 

 feet), belong to the same deposits, and that 

 this hill is not of morainic origin. 



Mr. Fuller has found a number of flat top 

 terraces south of the moraine, which have 

 something of the elevation of the Manhasset 

 terraces north, suggesting their extension be- 

 neath the moraine. 



Dip calculations based on data furnished 

 by these wells give very uniform results show- 

 ing a dip of about S. 23° E. sixty-five feet per 

 mile, and as quite heavy clay beds have been 

 found in all these wells overlying the water- 

 bearing gravel, an insular source for this water 

 seems ■ almost impossible. 



The investigations have hardly progressed 

 far enough for very definite conclusions to 

 have been reached regarding exact age and 

 structural relations, but we hope that some 

 of these points may be cleared up before the 

 close of the season. A. 0. Veatch. 



