﻿INDEX 
  TO 
  PORT 
  LEYDEN 
  QUADRANGLE 
  

  

  6l 
  

  

  Parish, 
  21, 
  zTt 
  

  

  Park 
  hill, 
  52. 
  

  

  Partridgeville, 
  13, 
  14, 
  17, 
  41. 
  

  

  Pentacrinites 
  hamptonii, 
  33, 
  

  

  Plagioclase, 
  12, 
  14, 
  16, 
  20, 
  21. 
  

  

  Pleistocene 
  geology, 
  44-46. 
  

  

  Port 
  Leyden, 
  18, 
  19, 
  20, 
  21, 
  22, 
  27, 
  

   29, 
  31, 
  34, 
  55, 
  41, 
  4^, 
  43, 
  45, 
  52, 
  55, 
  

   58. 
  

  

  Potsdam 
  sandstone, 
  7, 
  -21, 
  37, 
  39. 
  

  

  Precambric 
  rocks, 
  9^-21 
  ; 
  undeterm- 
  

   ined, 
  21 
  ; 
  erosion, 
  46. 
  

  

  Precambric 
  surface, 
  39-44; 
  slope 
  

   where 
  now 
  exposed, 
  40-41 
  ; 
  slope 
  

   where 
  Paleozoics 
  now 
  cover, 
  41- 
  

   42 
  ; 
  slope 
  during 
  Paleozoic 
  deposi- 
  

   tion, 
  42-44. 
  

  

  Prosser, 
  cited, 
  30, 
  34, 
  41. 
  

  

  Pulaski, 
  21, 
  42. 
  

  

  Pulaski 
  shale, 
  ZZ- 
  

  

  Pyrite, 
  11, 
  20, 
  34, 
  58. 
  

  

  Pyroxene, 
  12, 
  15, 
  20. 
  

  

  Pyroxene 
  gneisses, 
  12. 
  

  

  Quartz, 
  11, 
  12, 
  14, 
  16, 
  17, 
  20, 
  21, 
  58. 
  

   Quartz-hornblende 
  syenite, 
  13. 
  

  

  Remsen, 
  31, 
  32, 
  42, 
  50, 
  

  

  Remsen 
  quadrangle, 
  42, 
  43, 
  50, 
  51, 
  

  

  52, 
  54; 
  bulletin, 
  30; 
  Precambric 
  

  

  altitudes, 
  41. 
  

   Rideau 
  sandstone, 
  22. 
  

   Ripple 
  marks, 
  36. 
  

   Road 
  materials, 
  57. 
  

   Roaring 
  brook, 
  9, 
  22, 
  26, 
  30, 
  31, 
  45, 
  

  

  55- 
  

   Rome, 
  21, 
  34, 
  54. 
  

  

  Sand 
  pond, 
  51. 
  

  

  Sands, 
  7, 
  57. 
  

  

  Sedimentaries, 
  erosion, 
  47-51. 
  

  

  Shuetown, 
  10. 
  

  

  Sillimanite, 
  11, 
  20, 
  58. 
  

  

  Slope 
  of 
  Precambric 
  surface, 
  where 
  

   now 
  exposed, 
  40-41 
  ; 
  where 
  Paleo- 
  

   zoics 
  now 
  cover, 
  41-42; 
  during 
  

   Paleozoic 
  deposition, 
  42-44. 
  

  

  Smyth, 
  cited, 
  10, 
  12, 
  14, 
  15, 
  17; 
  men- 
  

   tioned, 
  40. 
  

  

  Soils, 
  56. 
  

  

  Sperry 
  hill, 
  52. 
  

  

  Stillwater, 
  21, 
  31, 
  32, 
  34, 
  35, 
  37, 
  39, 
  

  

  43- 
  

   Structural 
  geology, 
  34-37. 
  

   Structure 
  sections, 
  37, 
  38. 
  

   Sugar 
  river, 
  9, 
  28, 
  30, 
  31, 
  36. 
  

   Surface 
  of 
  the 
  Precambric 
  rocks, 
  

  

  39-44. 
  

  

  Syenitt, 
  12, 
  57, 
  58. 
  

   Syenite 
  gneiss, 
  12-15. 
  

   Syenite-Grenville 
  mixed 
  gneisses, 
  

   18-21. 
  

  

  Talcottville, 
  30, 
  52, 
  57. 
  

  

  Tetradium, 
  23, 
  25, 
  26. 
  

  

  Theresa 
  quadrangle, 
  22. 
  

  

  Topography, 
  8-^9. 
  

  

  Trenton 
  Falls, 
  28, 
  29, 
  30, 
  54. 
  

  

  Trenton 
  limestone, 
  7, 
  28-31, 
  34-35, 
  

  

  36, 
  39, 
  43, 
  45, 
  57, 
  58; 
  thickness, 
  

  

  31 
  ; 
  ripple 
  marks, 
  36. 
  

   Triarthrus 
  becki, 
  32, 
  33. 
  

   Tug 
  hill, 
  8, 
  31, 
  33, 
  34, 
  47, 
  49, 
  50, 
  53, 
  

  

  55- 
  

   Tupper 
  Lake 
  syenite, 
  18. 
  

   Turin, 
  30, 
  32, 
  33, 
  52, 
  57. 
  

  

  Ulrich, 
  cited, 
  22, 
  26. 
  

   Undetermined 
  Precambric 
  areas, 
  21. 
  

   Utica, 
  21^ 
  41. 
  

  

  Utica 
  shales, 
  7, 
  31-32, 
  47, 
  55; 
  thick- 
  

   ness, 
  32. 
  

  

  Vanuxem, 
  cited, 
  25, 
  32, 
  33, 
  34. 
  

   Vernon, 
  34. 
  

  

  Walcott, 
  cited, 
  33. 
  

  

  Watertown, 
  54. 
  

  

  West 
  Canada 
  creek, 
  50, 
  54. 
  

  

  Whetstone 
  creek, 
  9, 
  55. 
  

  

  Whetstone 
  gulf, 
  33, 
  50. 
  

  

  Whitaker's 
  gulf, 
  30. 
  

  

  Wilmurt 
  quadrangle 
  Precambric 
  

  

  altitudes, 
  41. 
  

   Woodhull 
  lake, 
  41. 
  

  

  Zircon, 
  11, 
  14, 
  17, 
  20. 
  21, 
  58. 
  

   Zoisite, 
  14. 
  

  

  