﻿Geology 
  and 
  Natural 
  History. 
  157 
  

  

  Upper 
  Devonian 
  " 
  furnishes 
  a 
  means 
  by 
  which 
  high 
  schools 
  and 
  

   academies 
  can 
  give 
  their 
  students 
  field 
  work 
  in 
  Geology. 
  After 
  

   a 
  brief 
  introduction 
  on 
  the 
  kinds 
  and 
  occurrence 
  of 
  rocks 
  and 
  

   definitions 
  of 
  a 
  few 
  important 
  geological 
  terms, 
  a 
  list 
  of 
  a 
  large 
  

   number 
  of 
  localities 
  is 
  given 
  with 
  the 
  kind 
  of 
  rock, 
  location 
  of 
  

   outcrop, 
  and 
  some 
  of 
  the 
  important 
  fossils 
  of 
  each. 
  The 
  pam- 
  

   phlet 
  closes 
  with 
  120 
  good 
  figures 
  of 
  characteristic 
  Upper 
  Devo- 
  

   nian 
  fossils. 
  This 
  book 
  of 
  thirty-five 
  pages 
  is 
  admirably 
  qualified 
  

   to 
  make 
  this 
  subject, 
  which 
  is 
  often 
  considered 
  difficult 
  and 
  un- 
  

   interesting, 
  really 
  enjoyable, 
  and 
  will 
  bring 
  out 
  the 
  powers 
  of 
  

   observation 
  of 
  the 
  student. 
  Its 
  convenient 
  size, 
  advice 
  on 
  field 
  

   work, 
  and 
  especially 
  the 
  excellent 
  illustrations 
  of 
  fossils 
  make 
  it 
  

   a 
  very 
  valuable 
  supplement 
  to 
  the 
  elementary 
  text-books 
  for 
  

   students 
  in 
  Geology, 
  both 
  in 
  the 
  secondary 
  schools 
  and 
  in 
  col- 
  

   leges, 
  h. 
  l. 
  c. 
  

   6. 
  Principles 
  and 
  Conditions 
  of 
  the 
  Movements 
  of 
  Ground 
  

  

  Water 
  ; 
  by 
  Franklin 
  H. 
  King. 
  With 
  a 
  theoretical 
  investiga- 
  

   tion 
  of 
  the 
  Motion 
  of 
  Ground 
  Waters, 
  by 
  Charles 
  H. 
  Slichter. 
  

   Xineteenth 
  Annual 
  Report, 
  U. 
  S. 
  Geological 
  Survey, 
  pp. 
  59-384. 
  — 
  

   The 
  water 
  which 
  falls 
  upon 
  the 
  land 
  is 
  evaporated 
  from 
  the 
  

   place 
  where 
  it 
  falls, 
  or 
  drains 
  off 
  through 
  natural 
  channels 
  or 
  

   sinks 
  into 
  the 
  ground. 
  The 
  laws 
  and 
  effects 
  of 
  the 
  first 
  two 
  

   movements 
  are 
  quite 
  well 
  understood, 
  but 
  little 
  is 
  known 
  of 
  the 
  

   career 
  of 
  the 
  considerable 
  portion 
  of 
  water 
  which 
  enters 
  the 
  

   soil 
  directly 
  and 
  which 
  has 
  such 
  an 
  important 
  influence 
  in 
  geo- 
  

   logical 
  processes 
  and 
  on 
  the 
  industries 
  and 
  domestic 
  life 
  of 
  civil- 
  

   ized 
  and 
  uncivilized 
  peoples. 
  The 
  paper 
  of 
  Prof. 
  King 
  is 
  an 
  

   important 
  contribution 
  to 
  this 
  little 
  known 
  subject, 
  and 
  gives 
  the 
  

   results 
  of 
  well-planned 
  experiments 
  and 
  careful 
  observations. 
  

   Chapter 
  I 
  deals 
  with 
  the 
  amount 
  of 
  water 
  stored 
  in 
  the 
  ground 
  

   and 
  discusses 
  in 
  detail 
  the 
  character 
  and 
  extent 
  of 
  the 
  gravita- 
  

   tional, 
  thermal, 
  and 
  capillary 
  movements 
  of 
  the 
  waters. 
  Chap- 
  

   ter 
  II 
  is 
  devoted 
  to 
  the 
  explanation 
  and 
  discussion 
  of 
  experi- 
  

   mental 
  investigations 
  regarding 
  the 
  flow 
  of 
  fluids 
  through 
  vari- 
  

   ous 
  porous 
  media. 
  In 
  Chapter 
  III 
  the 
  author 
  discusses 
  the 
  rate 
  

   of 
  flow 
  of 
  water 
  though 
  sands 
  and 
  rocks 
  of 
  different 
  character 
  

   and 
  degrees 
  of 
  porosity, 
  and 
  calls 
  attention 
  to 
  the 
  influence 
  of 
  

   this 
  factor 
  on 
  wells. 
  With 
  Prof. 
  King's 
  paper 
  is 
  one 
  on 
  the 
  

   Theoretical 
  Investigation 
  of 
  the 
  Motion 
  of 
  Ground 
  Water, 
  by 
  

   Prof. 
  Slichter, 
  in 
  which 
  are 
  given 
  the 
  physical 
  and 
  mathemati- 
  

   cal 
  data 
  for 
  the 
  discussion 
  of 
  the 
  whole 
  subject. 
  h. 
  e. 
  g. 
  

   1. 
  Geologic 
  Atlas 
  of 
  the 
  United 
  States 
  — 
  AbsaroJca 
  Folio, 
  

  

  Wyoming. 
  (Crandall 
  and 
  Ishawood 
  Quadrangles) 
  ; 
  Geology, 
  by 
  

   Arnold 
  Hague, 
  assisted 
  by 
  J. 
  P. 
  Iddings 
  and 
  T. 
  A. 
  Jaggar, 
  Jr. 
  

   Triangulation 
  and 
  Topography, 
  by 
  Frank 
  Tweedy, 
  Washing- 
  

   ton, 
  1899. 
  — 
  The 
  area 
  covered 
  by 
  these 
  sheets 
  is 
  that 
  east 
  of 
  and 
  

   immediately 
  adjoining 
  that 
  of 
  the 
  Yellowstone 
  Park 
  and 
  thus 
  

   continues 
  in 
  this 
  direction 
  into 
  the 
  Absaroka 
  Range, 
  the 
  work 
  

   published 
  in 
  the 
  Yellowstone 
  Park 
  Folio. 
  The 
  six 
  full 
  pages 
  of 
  

   text 
  (equal 
  to 
  about 
  70 
  pp. 
  in 
  ordinary 
  8°), 
  give 
  an 
  admirably 
  

  

  