﻿172 
  JOURNAL 
  OF 
  THE 
  WASHINGTON 
  ACADEMY 
  OF 
  SCIENCES 
  VOL. 
  12, 
  NO. 
  7 
  

  

  obtained 
  by 
  interpolation^ 
  between 
  adjacent 
  points 
  at 
  which 
  the 
  

   conditions 
  for 
  similarity 
  were 
  not 
  exactly 
  fulfilled. 
  All 
  of 
  the 
  infer- 
  

   ences 
  appropriate 
  to 
  physically 
  similar 
  systems 
  are 
  immediately 
  

   applicable 
  to 
  the 
  coordinates 
  of 
  the 
  point 
  P. 
  

  

  7. 
  In 
  particular, 
  when 
  v/3'o 
  = 
  l, 
  Equation 
  14 
  leads 
  at 
  once 
  to 
  the 
  

   final 
  working 
  formula 
  

  

  for 
  determining 
  the 
  relative 
  value 
  of 
  any 
  property 
  of 
  matter 
  Q. 
  This 
  

   formula 
  is 
  theoretically 
  exact 
  under 
  the 
  conditions 
  stated, 
  regardless 
  

   of 
  the 
  complexity 
  of 
  the 
  fluid 
  motions, 
  heat 
  transfer, 
  or 
  electrical 
  

   distributions 
  involved 
  in 
  any 
  given 
  experiment. 
  

  

  GEOLOGY. 
  — 
  The 
  major 
  tectonic 
  features 
  of 
  the 
  Dutch 
  East 
  Indies} 
  

   H. 
  A. 
  BrouwER, 
  Delft, 
  Holland. 
  

  

  CONTENTS 
  

  

  Introduction. 
  

  

  The 
  older 
  trend 
  lines 
  studied 
  in 
  plan. 
  

  

  The 
  older 
  overthrusts 
  studied 
  in 
  profile. 
  

  

  Regions 
  with 
  simpler 
  structure. 
  

  

  The 
  main 
  trend 
  lines 
  of 
  the 
  younger 
  stage 
  of 
  mountain-building. 
  

  

  Tertiary 
  strikes 
  cut 
  obliquely 
  by 
  the 
  present 
  geanticlinal 
  axis. 
  

  

  The 
  fractures 
  during 
  the 
  youngest 
  stage 
  of 
  mountain-building. 
  

  

  Literature 
  and 
  maps. 
  

  

  INTRODUCTION 
  

  

  Although 
  the 
  geology 
  of 
  parts 
  of 
  the 
  East 
  Indian 
  Archipelago 
  

   was 
  studied 
  in 
  detail 
  during 
  the 
  past 
  century 
  by 
  several 
  geologists, 
  

   a 
  great 
  many 
  of 
  the 
  islands, 
  particularly 
  those 
  in 
  the 
  eastern 
  part 
  

   of 
  the 
  Archipelago 
  remained 
  almost 
  unknown 
  geologically. 
  But 
  within 
  

   the 
  last 
  twenty 
  years 
  so 
  much 
  new 
  information 
  has 
  been 
  obtained 
  by 
  

   expeditions 
  to 
  the 
  more 
  eastern 
  islands 
  that 
  it 
  is 
  now 
  possible 
  to 
  sum- 
  

   marize 
  the 
  tectonic 
  features 
  of 
  the 
  entire 
  region 
  — 
  one 
  of 
  unusual 
  inter- 
  

   est 
  to 
  geologists 
  and 
  geophysicists. 
  Here 
  two 
  great 
  lines 
  of 
  crustal 
  

   weakness, 
  the 
  Alpine 
  and 
  the 
  circum- 
  Pacific 
  orogenic 
  systems, 
  meet 
  or 
  

   are 
  interlaced. 
  Although 
  it 
  is 
  convenient 
  to 
  speak 
  of 
  two 
  stages 
  

   of 
  deformation 
  in 
  the 
  East 
  Indies, 
  it 
  is 
  our 
  opinion 
  that 
  the 
  latest 
  

  

  5 
  Instead 
  of 
  interpolating 
  graphically, 
  cases 
  might 
  arise 
  where 
  it 
  would 
  be 
  of 
  advantage 
  

   to 
  employ 
  the 
  relation 
  connecting 
  derivatives; 
  cf. 
  This 
  Journal, 
  6: 
  620-629. 
  1916; 
  or 
  

   Bur. 
  Stds. 
  Sci. 
  Paper 
  331. 
  1920. 
  

  

  ^ 
  Address 
  delivered 
  before 
  Geological 
  Society 
  of 
  Washington. 
  Feb. 
  2, 
  1922. 
  

  

  