﻿CONTENTS. 
  

  

  Page 
  

   Art. 
  XXIII. 
  — 
  Geologic 
  Sketch 
  of 
  Titicaca 
  Island 
  and 
  

  

  Adjoining 
  Areas 
  ; 
  by 
  H. 
  E. 
  Gregory. 
  (With 
  Plate 
  I) 
  187 
  

  

  XXIV. 
  — 
  Experiments 
  on 
  Columnar 
  Ionization 
  ; 
  by 
  E. 
  M. 
  

  

  Wellisch 
  and 
  J. 
  W. 
  Woodeow 
  214 
  

  

  XXY. 
  — 
  Geology 
  of 
  the 
  New 
  Fossiliferous 
  Horizon 
  and 
  the 
  

   Underlying 
  Rocks, 
  in 
  Littleton, 
  N. 
  H.; 
  by 
  F. 
  H. 
  

   Lahee 
  _ 
  _ 
  231 
  

  

  XXVI. 
  — 
  Liassic 
  Flora 
  of 
  the 
  Mixteca 
  Alta 
  of 
  Mexico, 
  — 
  Its 
  

  

  Composition, 
  Age 
  and 
  Source 
  ; 
  by 
  G, 
  R. 
  Wieland 
  251 
  

  

  XXVII. 
  — 
  Age 
  of 
  the 
  Eurypterids 
  of 
  Kokomo, 
  Indiana 
  ; 
  by 
  

  

  E. 
  M. 
  Kindle.. 
  282 
  

  

  XXVIII.— 
  Two 
  Vanadiferous 
  Mghites 
  from 
  Libby, 
  Mon- 
  

   tana 
  ; 
  by 
  E. 
  S. 
  Larsen 
  and 
  W. 
  F. 
  Hunt 
  . 
  . 
  289 
  

  

  XXIX. 
  — 
  Method 
  of 
  Increasing 
  and 
  Controlling 
  the 
  Period 
  

  

  in 
  Vertical 
  Motion 
  Seismographs 
  ; 
  by 
  F. 
  A. 
  Perret.. 
  _ 
  297 
  

  

  XXX. 
  — 
  Action 
  of 
  Sodium 
  Paratungstate 
  in 
  Fusion 
  on 
  Salts 
  

   of 
  the 
  Halogen 
  Acids 
  and 
  Oxy-halogen 
  Acids 
  ; 
  by 
  S. 
  B. 
  

   Kuzirian 
  301 
  

  

  XXXI. 
  — 
  Use 
  of 
  the 
  Sodium 
  Paratungstate 
  and 
  the 
  Blowpipe 
  

   Flame 
  in 
  the 
  Determination 
  of 
  the 
  Acid 
  Radicals 
  of 
  

   Chlorides, 
  Chlorates, 
  Perchlorates, 
  Bromides, 
  Bromates 
  

   and 
  Fluorides 
  ; 
  by 
  S. 
  B. 
  Kuzirian 
  ._ 
  305 
  

  

  SCIENTIFIC 
  INTELLIGENCE. 
  

  

  Miscellaneous 
  Scientific 
  Intelligence. 
  — 
  Atlas 
  der 
  Krystallformen, 
  V. 
  Gold- 
  

   schmidt 
  : 
  Dybdeboring 
  i 
  Grondals 
  eng 
  ved 
  Kobenhavn 
  1894-1907 
  og 
  

   dens 
  videnskabelige 
  Besultater, 
  E. 
  P. 
  Bonnesen, 
  O. 
  B. 
  Boggild 
  og 
  J. 
  P. 
  

   Bavn, 
  313. 
  — 
  Das 
  Problem 
  der 
  Vererbung 
  " 
  Erworbener 
  Eigenschaften 
  ", 
  

   B. 
  Semon 
  : 
  Principles 
  of 
  Economic 
  Zoology 
  ; 
  Part 
  I, 
  Field 
  and 
  Laboratory 
  

   Guide, 
  L. 
  S. 
  Daugherty 
  and 
  M. 
  C. 
  Daugherty 
  : 
  The 
  Modern 
  Worship, 
  

   E. 
  L. 
  Atwood, 
  314. 
  

  

  