﻿A 
  TEXT-BOOK 
  OF 
  GEOLOGY 
  

  

  For 
  Use 
  in 
  -Universities, 
  Colleges, 
  Schools 
  of 
  Science, 
  etc., 
  and 
  for 
  the 
  

   General 
  Eeader. 
  Part 
  I, 
  PHYSICAL 
  GEOLOGY. 
  By 
  Louis 
  V. 
  Pirsson, 
  

   Professor 
  of 
  Physical 
  Geology 
  in 
  the 
  Sheffield 
  Scientific 
  School 
  of 
  Yale 
  

   University. 
  Part 
  II, 
  HISTORICAL 
  GEOLOGY. 
  By 
  Charles 
  Schuchert, 
  

   Professor 
  of 
  Paleontology 
  in 
  Yale 
  University 
  and 
  of 
  Historical 
  Geology 
  in 
  

   the 
  Sheffield 
  Scientific 
  School. 
  

  

  Part 
  I 
  is 
  a 
  text-book 
  which, 
  while 
  presenting 
  the 
  broad 
  facts 
  and 
  principles 
  

   of 
  the 
  science 
  from 
  the 
  latest 
  viewpoint, 
  has 
  a 
  character 
  somewhat 
  different 
  

   and 
  a 
  balance 
  more 
  even 
  in 
  the 
  subject 
  matter 
  composing 
  it, 
  than 
  is 
  to 
  be 
  

   found 
  in 
  other 
  texts. 
  

  

  vii 
  + 
  404 
  pages. 
  6 
  by 
  9. 
  311 
  figures 
  ; 
  appendix, 
  index 
  and 
  folding 
  colored 
  

   Geological 
  map 
  of 
  North 
  America. 
  Cloth, 
  $2.25 
  net. 
  

  

  Part 
  II 
  is 
  based 
  on 
  a 
  course 
  of 
  Historical 
  Geology 
  given 
  to 
  undergraduate 
  

   students 
  in 
  the 
  Sheffield 
  Scientific 
  School 
  of 
  Yale 
  University. 
  Lectures 
  

   showing 
  the 
  relationship 
  of 
  Historical 
  Geology 
  to 
  Astronomy 
  and 
  Evolution, 
  

   Biology 
  and 
  Oceanography 
  are 
  included. 
  Some 
  discussion 
  of 
  Botany 
  and 
  

   Zoology 
  is 
  also 
  given, 
  since 
  most 
  American 
  students 
  are 
  often 
  deficient 
  in 
  

   these 
  elements. 
  

  

  viii 
  + 
  622 
  pages. 
  6 
  by 
  9. 
  211 
  figures; 
  40 
  plates, 
  appendix, 
  index 
  and 
  

   folding 
  colored 
  Geological 
  map 
  of 
  North 
  America. 
  Cloth, 
  $2.50 
  net. 
  

  

  Complete 
  volume, 
  x 
  + 
  1051 
  pages. 
  6 
  by 
  9. 
  522 
  figures; 
  40 
  plates; 
  

   appendix, 
  index 
  and 
  folding 
  colored 
  Geological 
  map 
  of 
  North 
  America. 
  

   Cloth, 
  $4.00 
  net. 
  

  

  ROCKS 
  AND 
  ROCK 
  MINERALS. 
  

  

  A 
  Manual 
  of 
  the 
  Elements 
  of 
  Petrology 
  Without 
  the 
  Use 
  of 
  the 
  Micro- 
  

   scope. 
  By 
  Louis 
  V. 
  Pirsson. 
  

  

  A 
  handy 
  work 
  of 
  reference 
  for 
  the 
  field 
  geologist, 
  engineer, 
  miner, 
  archi- 
  

   tect, 
  etc., 
  and 
  also 
  a 
  text 
  for 
  use 
  in 
  colleges 
  and 
  schools. 
  Those 
  who 
  have 
  

   to 
  consider 
  rocks 
  from 
  the 
  scientific 
  or 
  practical 
  point 
  of 
  view 
  and 
  who 
  are 
  

   not 
  in 
  a 
  position 
  to 
  use 
  the 
  microscopical 
  method, 
  will 
  find 
  it 
  indispensable 
  . 
  

  

  v 
  + 
  414 
  pages. 
  5 
  by 
  1%. 
  74 
  figures. 
  36 
  full-page 
  half-tone 
  plates. 
  

   Cloth, 
  $2.50 
  net. 
  

  

  ECONOMIC 
  GEOLOGY. 
  Fourth 
  Edition, 
  Thoroughly 
  Revised 
  and 
  

   Enlarged. 
  By 
  Heinrich 
  Ries, 
  A.M., 
  Ph.D. 
  Professor 
  of 
  Geology 
  at 
  Cor- 
  

   nell 
  University. 
  

  

  In 
  this 
  edition 
  a 
  description 
  of 
  the 
  more 
  important 
  Canadian 
  mineral 
  

   deposits 
  has 
  been 
  added, 
  as 
  well 
  as 
  brief 
  reference 
  to 
  some 
  of 
  the 
  well- 
  

   known 
  ones 
  of 
  other 
  countries. 
  Part 
  I 
  treats 
  Nonmetallics, 
  while 
  Part 
  II 
  is 
  

   devoted 
  to 
  Ore 
  Deposits. 
  

  

  xviii 
  + 
  856 
  pages. 
  6x9. 
  291 
  figures, 
  75 
  plates. 
  Cloth, 
  $4.00 
  net. 
  

  

  Send 
  for 
  Free 
  Examination 
  copies. 
  

   Also, 
  for 
  our 
  Special 
  Subject 
  Catalog 
  13. 
  

  

  JOHN 
  WILEY 
  & 
  SONS, 
  Inc. 
  

  

  Dept* 
  B,— 
  432 
  Fourth 
  Avenue, 
  New 
  York 
  

  

  London 
  : 
  Chapman 
  & 
  Hall, 
  Ltd. 
  

   Montreal, 
  Can. 
  : 
  Manila, 
  P. 
  I. 
  : 
  

  

  Renouf 
  Publishing 
  Co. 
  Philippine 
  Education 
  Co. 
  

  

  AJ8.-6-19 
  

  

  