﻿Report 
  of 
  the 
  State 
  Geologist. 
  761 
  

  

  C. 
  D. 
  Walcott. 
  — 
  The 
  Trilobite; 
  new 
  and 
  old 
  evidence 
  relating 
  to 
  

   its 
  organization. 
  

  

  (Bull. 
  Mus. 
  Comp. 
  Zool. 
  Harv. 
  Coll., 
  vol. 
  8, 
  no. 
  16, 
  pp. 
  191-224, 
  

   pis. 
  i-v.) 
  

  

  C. 
  D. 
  Walcott. 
  — 
  The 
  Nature 
  of 
  Cyathophycus. 
  

   (Amer. 
  Jour. 
  Science, 
  vol. 
  22, 
  pp. 
  394, 
  395.) 
  

  

  R. 
  P. 
  Whitfield. 
  — 
  Nature 
  of 
  Dictyophyton. 
  

   (Amer. 
  Jour. 
  Science, 
  vol. 
  22, 
  pp. 
  132-134.) 
  

  

  R. 
  P. 
  Whitfield. 
  — 
  Observations 
  on 
  the 
  Purposes 
  of 
  the 
  Embry- 
  

   onic 
  Sheaths 
  of 
  Endoceras 
  and 
  their 
  bearing 
  upon 
  the 
  Origin 
  of 
  the 
  

   Sipho 
  in 
  the 
  Orthocerata. 
  

  

  (Bull. 
  Amer. 
  Mus. 
  Nat, 
  Hist., 
  vol. 
  1, 
  pp. 
  20-28.) 
  

  

  H. 
  S. 
  Williams. 
  — 
  Channel-fillings 
  in 
  Upper 
  Devonian 
  Shales. 
  

   (Amer. 
  Jour. 
  Science, 
  vol. 
  21, 
  pp. 
  318-320.) 
  

  

  1882. 
  

  

  N. 
  L. 
  Britton. 
  — 
  On 
  the 
  Geology 
  of 
  Richmond 
  County, 
  N. 
  Y. 
  

   (Ann. 
  N. 
  Y. 
  Acad. 
  Sci., 
  vol. 
  2, 
  pp. 
  161-182, 
  pis. 
  xv, 
  xvi.) 
  

  

  N. 
  L. 
  Britton. 
  — 
  Additional 
  Notes 
  on 
  the 
  Geology 
  of 
  Staten 
  

   Island, 
  N. 
  Y. 
  

  

  (Trans. 
  N. 
  Y. 
  Acad. 
  Sci., 
  vol. 
  1, 
  pp. 
  56, 
  57.) 
  

  

  N. 
  L. 
  Britton. 
  — 
  On 
  some 
  large 
  Pot-holes 
  near 
  Williamsbridge, 
  

   N. 
  Y. 
  

  

  (Trans. 
  N. 
  Y. 
  Acad. 
  Sci., 
  vol. 
  1, 
  pp. 
  181-183.) 
  

  

  J. 
  M. 
  Clarke. 
  — 
  New 
  Phyllopod 
  Crustaceans 
  from 
  the 
  Devonian 
  of 
  

   New 
  York. 
  

  

  (Amer. 
  Jour. 
  Science, 
  vol. 
  23, 
  pp. 
  476-479, 
  plate.) 
  

  

  J. 
  M. 
  Clarke. 
  — 
  Cirriped 
  Crustacean 
  from 
  the 
  Devonian. 
  

   (Amer. 
  Jour. 
  Science, 
  vol. 
  24, 
  pp. 
  55, 
  56.) 
  

  

  J. 
  D. 
  Dana. 
  — 
  Geological 
  Age 
  of 
  the 
  Taconic 
  System. 
  

   (Quart, 
  Jour. 
  Geol. 
  Soc, 
  vol. 
  38, 
  p. 
  397.) 
  

  

  N. 
  H. 
  Dartox. 
  — 
  Notes 
  on 
  the 
  Weehawken 
  Tunnel. 
  

   (Trans. 
  N. 
  Y. 
  Acad. 
  Sci., 
  vol. 
  1, 
  pp. 
  129-131.) 
  

  

  W. 
  M. 
  Davis.— 
  The 
  Catskill 
  Region. 
  

   (Appalachia, 
  vol. 
  3, 
  no. 
  1.) 
  

  

  W. 
  M. 
  Davis. 
  — 
  The 
  Little 
  Mountains 
  east 
  of 
  the 
  Catskills. 
  

   (Appalachia, 
  vol. 
  3, 
  pp. 
  20-33, 
  pi. 
  i.) 
  

   96 
  

  

  