﻿28o 



NEW YORK STATE MUSEUM 



Ithaca beds, 38, 55. 



Jameco gravels, 36. 



Jerome Park reservoir, interbedded 

 development of limestones in vicin- 

 ity of, 268. 



Jura-Trias formations, 37, 54. 



Kemp, James F., acknowledgments 



to, 6; consulting geologist, 6, 19, 



75; cited, 81, 232. 

 Kensico dam site, geology of, 191- 



94. 

 Kensico quarries, stone of, 195-200; 



additional tests, 199. 

 Kensico reservoir, to be enlarged, 



13. 

 Kripplebush, 127. 

 Kripplebush section, 129-31. 



Laminated sand and clay, iii. 



Laminated till, HO. 



Langthorn, J. S., acknowledgments 

 to, 7; division engineer, 21, 109. 



Leperditia alta, 44. 



Leptaena rhomboidalis, 40, 42. 



Leptocoelia acutiplicata, 40. 



Leptostrophia magnifica, 41. 

 perplana, 40. 



Liberty ville, 149, 150. 



Limestones, 99, 100, 176; resistance 

 to solution, 139; analysis of, 139; 

 of Sprout Brook valley, 171 ; in- 

 terbedded, older than the Inwood, 

 266-70. 



Liorhynchus mysia, 38. 



Little Stony point, 85, 97, 104. 



Location map, 80. 



Long Island, Cretaceous and Ter- 

 tiary strata, 32; glacial deposits, 

 35-36. 



Lower East Side zone, 238. 



Lowerre quartzite, 47, 50, 56. 



McCarthy, C. H., boring equipment 

 owned and operated by, 141. 



Manhattan schist, 47, 48-49, 56, 171, 

 183, 186, 191, 192, 201, 217, 218, 



219, 220, 221, 225, 226, 233, 234, 

 237, 238, 240, 241, 242, 243, 244, 

 245, 246, 247, 248, 249, 254, 257, 

 261, 265, 268, 269. 



Manhattanville cross valley, 237, 244- 

 45- 



Manlius limestone, 43-44, 55, 126, 

 133, 134- 



Marcellus shales, 38, 55, 126. 



Matawan beds, 37, 54. 



Mather, W. W., cited, 268, 274. 



Merrill, cited, 48. 



Merriman, Thaddeus, acknowledg- 

 ments to, 6; assistant chief engi- 

 neer, 13, 109. 



Mesozoic time, 64. 



Miocene deposits, 36. 



Miocene fluffy sand, 54. 



Moodna creek, 103-4; wash borings, 

 26; course of, 155-59. 



Moodna valley, ancient, 153-62; sta- 

 tistics, 160. 



Morningside to Central Park sec- 

 tion, 245-50. 



Mountain-forming movements, 59- 

 60. 



New Ferris quarry, granite, 198. 



New Hamburg, 81. 



New Hamburg group, crossings, 97, 

 102-3, 105. 



New Hamburg line, 83-85. 



New Paltz, 149. 



New Scotland shaly limestone, 42, 

 55, 126, 133. 



New York- Westchester district. 30. 



New York city, gorge at, 91 ; sec- 

 tions of gorge at 32d street, 92 ; 

 geological conditions affecting the 

 location of delivery conduits, 215- 

 29; areal and structural geology 

 south of 59th street. 231-36; struc- 

 tural geology of the lower East 

 side, 253-66. 



Newark series, 37, 54. 



Newburgh, 154. 



Northern aqueduct to be finished 

 first, 183. 



