﻿Report 
  of 
  the 
  State 
  Geologist. 
  759 
  

  

  C. 
  D. 
  Walcott. 
  — 
  Descriptions 
  of 
  New 
  Species 
  of 
  Fossils 
  from 
  the 
  

   Trenton 
  limestone. 
  

  

  (28th 
  Ann. 
  Kept. 
  N. 
  Y. 
  State 
  Mus. 
  Nat, 
  Hist., 
  pp. 
  93-98.) 
  

  

  C. 
  D. 
  Walcott. 
  — 
  Notes 
  on 
  some 
  sections 
  of 
  Trilobites 
  from 
  the 
  

   Trenton 
  limestone. 
  

  

  (31st 
  Ann. 
  Rept. 
  N. 
  Y. 
  State 
  Mus. 
  Nat. 
  Hist., 
  pp. 
  61-65, 
  pi. 
  i.) 
  

  

  C. 
  D. 
  Walcott. 
  — 
  Note 
  on 
  the 
  Eggs 
  of 
  the 
  Trilobite. 
  

   (31st 
  Ann. 
  Rept. 
  N. 
  Y. 
  State 
  Mus. 
  Nat. 
  Hist., 
  pp. 
  66, 
  67.) 
  

  

  C. 
  D. 
  Walcott. 
  — 
  The 
  Utica 
  slate 
  and 
  related 
  Formations. 
  

   (Trans. 
  Albany 
  Inst., 
  vol. 
  10, 
  pp. 
  1-17.) 
  

  

  C. 
  D. 
  Walcott. 
  — 
  Fossils 
  of 
  the 
  Utica 
  Slate. 
  

   (Trans. 
  Albany 
  Inst., 
  vol. 
  10, 
  pp. 
  18-38, 
  pis. 
  i, 
  ii.) 
  

  

  R. 
  P. 
  Whitfield. 
  — 
  Discovery 
  of 
  specimens 
  of 
  Maclurea 
  magna 
  of 
  

   the 
  Chazy 
  in 
  the 
  Barnegat 
  limestone, 
  near 
  Newburgh, 
  New 
  York. 
  

   (Amer. 
  Jour. 
  Science, 
  vol. 
  18, 
  p. 
  227.) 
  

  

  1880. 
  

  

  J 
  . 
  D. 
  Dana. 
  — 
  Geological 
  Relations 
  of 
  the 
  Limestone 
  Belts 
  of 
  West- 
  

   chester 
  County, 
  New 
  York. 
  

  

  (Am. 
  Jour. 
  Science, 
  vol. 
  20, 
  pp. 
  21-33, 
  194-221, 
  359-375, 
  450, 
  456, 
  

   pis. 
  viii, 
  ix; 
  also 
  vol. 
  21, 
  1881, 
  pp. 
  425-443; 
  vol. 
  22, 
  pp. 
  103-119, 
  

   313-315, 
  326-335.) 
  

  

  W. 
  B. 
  Dwight. 
  — 
  Calciferous 
  as 
  well 
  as 
  Trenton 
  Fossils 
  in 
  the 
  

   Wappinger 
  limestone 
  at 
  Rochdale 
  and 
  a 
  Trenton 
  locality 
  at 
  New- 
  

   burgh, 
  N. 
  Y. 
  

  

  (Amer. 
  Jour. 
  Science, 
  vol. 
  19, 
  pp. 
  50-54.) 
  

  

  ' 
  W. 
  B. 
  Dwight. 
  — 
  Description 
  of 
  a 
  new 
  discinoid 
  Brachiopod 
  from 
  

   the 
  Trenton 
  at 
  Newburgh, 
  N. 
  Y. 
  

  

  (Amer. 
  Jour. 
  Science, 
  vol. 
  19, 
  pp. 
  451-483, 
  pi. 
  xxi.) 
  

  

  S. 
  W. 
  Ford. 
  — 
  Note 
  on 
  the 
  Trilobite, 
  Atops 
  trilineatus, 
  of 
  Emmons. 
  

   (Amer. 
  Jour. 
  Science, 
  vol. 
  19, 
  pp. 
  152, 
  153.) 
  

  

  S. 
  W. 
  Ford 
  — 
  On 
  the 
  Western 
  Limits 
  of 
  the 
  Taconic 
  System. 
  

   (Amer. 
  Jour. 
  Science, 
  vol. 
  19, 
  pp. 
  225, 
  226.) 
  

  

  . 
  Arnold 
  Guyot.— 
  On 
  the 
  Physical 
  Structure 
  and 
  Hypsometry 
  of 
  

   the 
  Catskill 
  Mountain 
  Region. 
  

  

  (Amer. 
  Jour. 
  Science, 
  vol. 
  19, 
  pp. 
  429-4sl.) 
  

  

  