﻿116 
  [Senate 
  

  

  Vol. 
  9, 
  p. 
  424. 
  On 
  the 
  existing 
  mineral 
  localities 
  of 
  Lewis, 
  Jef- 
  

   ferson 
  and 
  St. 
  Lawrence 
  counties, 
  New-York. 
  By 
  Dr. 
  

   Franklin 
  B. 
  Hough. 
  

  

  Vol. 
  9, 
  p. 
  430. 
  Large 
  crystals 
  of 
  sphene, 
  (with 
  figures,) 
  obtained 
  

   at 
  Diana, 
  near 
  the 
  Natural 
  Bridge, 
  Lewis 
  county, 
  New- 
  

   York. 
  Described 
  by 
  Wm. 
  S. 
  Vaux, 
  of 
  Philadelphia. 
  

  

  Vol. 
  9, 
  p. 
  449. 
  Analysis 
  of 
  Oak 
  Orchard 
  acid 
  spring 
  water, 
  Ala- 
  

   bama, 
  Genesee 
  county, 
  N. 
  Y. 
  By 
  H. 
  Errie 
  and 
  William 
  

   J. 
  Craw. 
  (The 
  results 
  are 
  heathen 
  Greek 
  to 
  the 
  unin- 
  

   itiated.) 
  

  

  Vol. 
  10, 
  p. 
  372. 
  Optical 
  examination 
  of 
  several 
  American 
  micas. 
  

   By 
  B. 
  Silliman, 
  Jun., 
  M. 
  D. 
  

  

  Vol. 
  10, 
  p. 
  383. 
  Analysis 
  of 
  phlogopite, 
  from 
  St. 
  Lawrence 
  co., 
  

   N. 
  Y. 
  By 
  William 
  J. 
  Craw. 
  

  

  9 
  

  

  GEOLOGY. 
  

  

  Proceedings 
  of 
  the 
  American 
  Association 
  for 
  the 
  Advancement 
  of 
  

   Science. 
  Second 
  meeting 
  held 
  at 
  Cambridge^ 
  August^ 
  1849. 
  

  

  Page 
  255. 
  On 
  some 
  fossil 
  remains, 
  from 
  Broome 
  county, 
  N. 
  Y., 
  

   By 
  W. 
  C. 
  Redfield. 
  

  

  Page 
  256. 
  On 
  the 
  trails 
  and 
  tracks 
  in 
  the 
  sandstones 
  of 
  the 
  

   Clinton 
  group 
  of 
  New-York; 
  their 
  probable 
  origin, 
  &c.j 
  

   and 
  a 
  comparison 
  of 
  some 
  of 
  them 
  with 
  JYereites 
  and 
  

   Myrianites. 
  By 
  Prof. 
  James 
  Hall. 
  

  

  Page 
  347. 
  On 
  the 
  brachiopoda 
  of 
  the 
  silurean 
  period, 
  particu- 
  

   larly 
  the 
  leptcenidce. 
  By 
  Prof. 
  James 
  Hall. 
  

  

  Page 
  351. 
  On 
  graptolites, 
  their 
  duration 
  in 
  geological 
  periods, 
  

   and 
  their 
  value 
  in 
  the 
  identification 
  of 
  strata. 
  By 
  

   James 
  Hall. 
  

  

  