﻿2^2 
  Scientific 
  Intelligence. 
  

  

  It 
  has 
  the 
  somewhat 
  unusual 
  merit 
  of 
  having 
  been 
  prepared 
  by 
  

   authors 
  who 
  are 
  themselves 
  engaged 
  in 
  practical 
  work, 
  and 
  con- 
  

   sequently 
  fully 
  alive 
  to 
  the 
  needs 
  of 
  others 
  in 
  the 
  same 
  line. 
  It 
  

   is 
  comprehensive 
  in 
  scope, 
  discussing 
  the 
  municipal 
  relations 
  of 
  

   the 
  work, 
  the 
  practical 
  questions 
  of 
  building, 
  as 
  well 
  as 
  the 
  more 
  

   special 
  topics 
  of 
  systems 
  of 
  supply, 
  forms 
  of 
  steam 
  generators, 
  

   and 
  the 
  electrical 
  equipment 
  in 
  general. 
  The 
  best 
  forms 
  of 
  

   switch-boards 
  and 
  regulators 
  are 
  described, 
  the 
  methods 
  of 
  dis- 
  

   tribution 
  with 
  the 
  various 
  mains, 
  etc. 
  A 
  chapter 
  is 
  given 
  to 
  the 
  

   methods 
  of 
  charging 
  for 
  electrical 
  energy, 
  and 
  the 
  price 
  involved; 
  

   also 
  another 
  to 
  the 
  analysis 
  of 
  cost 
  of 
  management 
  in 
  its 
  different 
  

   departments. 
  

  

  10. 
  AnnalenderPhysik. 
  — 
  The 
  time-honored 
  periodical, 
  which 
  for 
  

   more 
  than 
  a 
  century 
  under 
  the 
  charge 
  of 
  Gren, 
  Gilbert, 
  Poggen- 
  

   dorff 
  and 
  the 
  Wiedemanns, 
  has 
  done 
  so 
  much 
  for 
  the 
  develop- 
  

   ment 
  of 
  physics, 
  begins 
  its 
  fourth 
  series 
  with 
  the 
  first 
  number 
  for 
  

   1900. 
  The 
  title 
  has 
  been 
  changed 
  in 
  recognition 
  of 
  the 
  fact 
  that 
  

   the 
  journal 
  is 
  now 
  devoted 
  to 
  physics 
  exclusively, 
  and 
  it 
  is 
  for 
  

   the 
  future 
  to 
  be 
  edited 
  by 
  Dr. 
  Paul 
  Drude 
  in 
  Leipzig. 
  The 
  gen- 
  

   eral 
  interests 
  of 
  the 
  journal 
  will 
  be 
  cared 
  for 
  by 
  the 
  following 
  

   gentlemen 
  : 
  F. 
  Kohlrausch, 
  M. 
  Planck, 
  G. 
  Quincke, 
  W. 
  C. 
  Ront- 
  

   gen, 
  E, 
  Warburg; 
  of 
  these 
  M. 
  Planck 
  assumes 
  special 
  responsi- 
  

   bility; 
  they 
  will 
  be 
  supported 
  by 
  the 
  Deutsche 
  Physikalische 
  

   Gesellschait. 
  

  

  II. 
  Geology 
  and 
  Mineralogy. 
  

  

  1. 
  The 
  Geology 
  and 
  Physical 
  Geography 
  of 
  Jamaica 
  ; 
  Study 
  

   of 
  a 
  Type 
  of 
  Antillean 
  Development. 
  Based 
  upon 
  Surveys 
  made 
  

   for 
  Alexander 
  Agassiz. 
  By 
  Robert 
  T. 
  Hill. 
  With 
  an 
  Appen- 
  

   dix 
  on 
  some 
  Cretaceous 
  and 
  Eocene 
  Corals 
  from 
  Jamaica. 
  By 
  

   T. 
  Wayland 
  Vaughan. 
  Bull. 
  Mus. 
  Comp. 
  Zool., 
  Harvard 
  

   College, 
  vol. 
  xxxiv 
  (Geological 
  Series, 
  vol. 
  iv,) 
  plates 
  i-xli, 
  

   figures 
  1-40, 
  pp. 
  1-256, 
  1899. 
  — 
  Jamaica, 
  as 
  the 
  central 
  land-mass 
  

   of 
  the 
  American 
  Mediterranean 
  region, 
  has 
  been 
  chosen 
  by 
  

   Professor 
  Agassiz 
  for 
  thorough 
  geological 
  investigation. 
  " 
  This 
  

   central 
  position 
  of 
  the 
  island 
  is 
  important 
  from 
  geographic, 
  

   biologic, 
  and 
  geologic 
  points 
  of 
  view, 
  and 
  makes 
  it 
  a 
  typical 
  

   base 
  of 
  study 
  for 
  one 
  interested 
  in 
  Antillean 
  problems. 
  Like 
  a 
  

   measuring 
  gauge 
  set 
  up 
  in 
  the 
  middle 
  of 
  a 
  stream 
  to 
  record 
  the 
  

   rise 
  and 
  fall 
  of 
  a 
  river, 
  it 
  stands 
  in 
  the 
  center 
  of 
  the 
  American 
  

   Mediterranean, 
  — 
  a 
  standard 
  geological 
  index 
  of 
  the 
  great 
  oscil- 
  

   latory 
  changes 
  of 
  level 
  which 
  have 
  taken 
  place 
  in 
  the 
  history 
  of 
  

   Tropical 
  America, 
  whose 
  feebler 
  amplitudes 
  only 
  are 
  indicated 
  in 
  

   the 
  perizonal 
  continental 
  borders." 
  Mr. 
  R. 
  T. 
  Hill 
  having 
  made 
  

   the 
  necessary 
  investigation 
  of 
  the 
  geology 
  of 
  the 
  island, 
  presents 
  

   in 
  this 
  volume 
  an 
  exhaustive 
  account 
  of 
  the 
  present 
  geological 
  

   condition 
  of 
  the 
  island. 
  From 
  the 
  facts 
  gathered, 
  the 
  author 
  has 
  

   drawn 
  the 
  following 
  conclusions 
  regarding 
  the 
  known 
  history 
  of 
  

   the 
  Antillean 
  region 
  : 
  " 
  The 
  geology 
  and 
  configuration 
  present 
  

  

  