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  ADDITIONS 
  TO 
  THE 
  LIBRARY. 
  

  

  Paris. 
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  de 
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  Memoires. 
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   1&2. 
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  Penzance. 
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   Vol. 
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   C. 
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  107. 
  

   — 
  R. 
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  Frecheville. 
  Description 
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  Mine, 
  in 
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   W. 
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  The 
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   Whitley. 
  The 
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  Philadelphia. 
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   A. 
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  Notes 
  on 
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  Revision 
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   oorinoidea, 
  Part 
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  A. 
  Heilprin. 
  A 
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  of 
  the 
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   sippi 
  Tertiary 
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  Remarks 
  

   on 
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  and 
  Pecchiolia, 
  428. 
  — 
  

   A. 
  Heilprin. 
  Note 
  on 
  the 
  approximate 
  Position 
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  the 
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  Deposits 
  

   of 
  Maryland, 
  444. 
  — 
  A. 
  Heilprin. 
  A 
  Revision 
  of 
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  Tertiary 
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  of 
  

   Area 
  of 
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  Eastern 
  and 
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  448. 
  

  

  . 
  American 
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  Nos. 
  107-109. 
  1880-81. 
  

  

  E. 
  D. 
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  Second 
  Contribution 
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  History 
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  the 
  Vertebrata 
  of 
  

   the 
  Permian 
  of 
  Texas, 
  38. 
  — 
  E. 
  D. 
  Cope. 
  On 
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  Tertiary 
  Strata 
  of 
  

   the 
  Great 
  Basin, 
  GO. 
  — 
  E. 
  D. 
  Cope. 
  On 
  the 
  Genera 
  of 
  the 
  Creodonta, 
  76. 
  

   — 
  J. 
  J. 
  Stevenson. 
  Notes 
  respecting 
  a 
  Reeroded 
  Channel-way, 
  84. 
  — 
  J. 
  J. 
  

   Stevenson. 
  Notes 
  on 
  the 
  Geology 
  of 
  Wise, 
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  and 
  Scott 
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   Virginia, 
  88. 
  — 
  H. 
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  Jones. 
  Section 
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  the 
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  111. 
  — 
  

   H. 
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  Lewis. 
  On 
  a 
  Kitchen-heap 
  at 
  Saltville, 
  in 
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  Virginia, 
  

   155. 
  — 
  J. 
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  Lesley. 
  Objections 
  to 
  the 
  recent 
  Age 
  of 
  the 
  Virginia 
  Faults. 
  

  

  1 
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  — 
  A. 
  S. 
  McCreath. 
  Analysis 
  of 
  a 
  pure 
  Dolomite 
  from 
  Franklin 
  

   County, 
  197. 
  — 
  J. 
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  Notes 
  on 
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  Place 
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   merate 
  in 
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  198. 
  — 
  J. 
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  Stevenson. 
  A 
  Geological 
  

   Reconnaissance 
  of 
  Parts 
  of 
  Lee, 
  Wise, 
  Scott, 
  and 
  Washington 
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   Va., 
  219. 
  — 
  P. 
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  Photodynamic 
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  262. 
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  J. 
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  Stevenson. 
  

   The 
  Upper 
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  Coal-bed 
  in 
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  County, 
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  Va., 
  276. 
  — 
  Leo 
  

   Lesquereux. 
  On 
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  " 
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  B. 
  Re- 
  

   nault, 
  287. 
  — 
  J. 
  W. 
  Spencer. 
  Discovery 
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  preglacial 
  Outlet 
  of 
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   Basin 
  of 
  Lake 
  Erie 
  into 
  that 
  of 
  Lake 
  Ontario, 
  and 
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  on 
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  Origin 
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   our 
  lower 
  great 
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  300. 
  — 
  C. 
  A. 
  Ashburner. 
  Geological 
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   St. 
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  Elk 
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  Pa., 
  33 
  7.- 
  -W. 
  M. 
  Fontaine. 
  On 
  the 
  Saltville 
  

   Fault, 
  349. 
  — 
  E. 
  D. 
  Cope. 
  The 
  Systematic 
  Arrangement 
  of 
  the 
  Order 
  

   Perissodactvla, 
  377. 
  — 
  E. 
  D. 
  Cope. 
  On 
  the 
  Structure 
  of 
  the 
  Posterior 
  

   Foot 
  of 
  Toxodon, 
  402.— 
  J. 
  C. 
  White. 
  Notes 
  on 
  the 
  Geology 
  of 
  West 
  

   Virginia, 
  438. 
  — 
  G. 
  A. 
  Konig. 
  On 
  Alaskaite, 
  a 
  new 
  Member 
  of 
  the 
  

   Series 
  of 
  Bismuth 
  Sulphosalts, 
  472. 
  — 
  H. 
  M. 
  Chance. 
  The 
  Auriferous 
  

   Gravels 
  of 
  North 
  Carolina, 
  477. 
  — 
  E. 
  D. 
  Cope. 
  On 
  some 
  Mammalia 
  of 
  the 
  

   Lowest 
  Eocene 
  Beds 
  of 
  New 
  Mexico, 
  484. 
  — 
  J. 
  J. 
  Stevenson. 
  Notes 
  on 
  

   the 
  Quinnimont 
  Coal 
  Group 
  in 
  Mercer 
  Co. 
  of 
  West 
  Virginia 
  and 
  Taze- 
  

   well 
  Co. 
  of 
  Virginia, 
  498. 
  — 
  J. 
  J. 
  Stevenson. 
  Notes 
  on 
  the 
  Coal-field 
  near 
  

   Canon 
  City, 
  Colorado, 
  505. 
  

  

  . 
  . 
  Transactions. 
  N. 
  S. 
  Vol. 
  xv. 
  Part 
  3. 
  1881. 
  

  

  