﻿484 
  Scientific 
  Intelligence. 
  

  

  IY. 
  Miscellaneous 
  Scientific 
  Intelligence. 
  

  

  1. 
  The 
  Science 
  of 
  Mechanics, 
  by 
  Dr. 
  Ernst 
  Mach, 
  Professor 
  

   of 
  Physics 
  in 
  the 
  University 
  of 
  Prague. 
  Translated 
  from 
  the 
  

   second 
  German 
  edition 
  by 
  Thomas 
  J. 
  McCormack, 
  pp. 
  534, 
  with 
  

   250 
  cuts, 
  1894, 
  Chicago 
  (The 
  Open 
  Court 
  Publishing 
  Co.). 
  — 
  Every 
  

   student 
  and 
  still 
  more 
  every 
  teacher 
  of 
  mechanics 
  or 
  any 
  sub- 
  

   ject 
  akin 
  to 
  it 
  needs 
  to 
  regard 
  his 
  work 
  from 
  the 
  standpoint 
  of 
  

   this 
  book. 
  The 
  fundamental 
  notions 
  of 
  mechanics 
  are 
  presented 
  

   in 
  the 
  form 
  of 
  a 
  history 
  of 
  their 
  development 
  accompanied 
  by 
  a 
  

   critical 
  analysis 
  of 
  the 
  reasoning 
  by 
  which 
  each 
  contributor 
  to 
  

   the 
  science 
  made 
  his 
  deductions. 
  

  

  The 
  purpose 
  of 
  the 
  author, 
  as 
  stated 
  by 
  himself, 
  is 
  to 
  show 
  

   "how 
  the 
  principles 
  of 
  mechanics 
  have 
  been 
  ascertained, 
  from 
  

   what 
  sources 
  they 
  take 
  their 
  origin 
  and 
  how 
  far 
  they 
  can 
  be 
  

   regarded 
  as 
  permanent 
  acquisitions." 
  

  

  The 
  story 
  of 
  the 
  labors 
  of 
  the 
  pioneers 
  of 
  thought 
  in 
  opening 
  

   paths 
  into 
  the 
  unknown 
  is 
  no 
  small 
  part 
  of 
  their 
  legacy 
  to 
  man- 
  

   kind. 
  The 
  author 
  tells 
  this 
  story 
  for 
  mechanics, 
  not 
  superficially 
  

   but 
  after 
  the 
  manner 
  of 
  the 
  Germans. 
  Of 
  especial 
  interest 
  to 
  

   teachers 
  of 
  mechanics 
  is 
  his 
  forcible 
  presentation 
  of 
  the 
  opinion 
  

   that 
  the 
  true 
  relation 
  of 
  its 
  principles 
  is 
  the 
  historical 
  one. 
  Many 
  

   will 
  find 
  in 
  it 
  a 
  clew 
  to 
  a 
  natural 
  method 
  of 
  teaching, 
  and 
  its 
  

   influence 
  ought 
  to 
  be 
  evident 
  in 
  the 
  text-books 
  of 
  elementary 
  

   mechanics 
  hereafter 
  published. 
  w. 
  b. 
  

  

  2. 
  Dynamics 
  ; 
  by 
  R. 
  T. 
  Glazebrook, 
  F.R.S., 
  pp. 
  256, 
  99 
  illus- 
  

   trations. 
  (The 
  Cambridge 
  Natural 
  Science 
  Manuals.) 
  — 
  This 
  

   book 
  presents 
  very 
  attractively 
  the 
  system 
  of 
  teaching 
  followed 
  

   by 
  the 
  author 
  in 
  the 
  Cavendish 
  Physical 
  Laboratory, 
  and 
  marks 
  

   a 
  great 
  advance 
  on 
  the 
  method 
  still 
  too 
  prevalent 
  of 
  presenting 
  

   mechanics 
  as 
  a 
  branch 
  of 
  pure 
  mathematics. 
  A 
  series 
  of 
  care- 
  

   fully 
  arranged 
  experiments, 
  many 
  of 
  them 
  new 
  and 
  inexpensive 
  

   and 
  suitable 
  for 
  the 
  average 
  student 
  to 
  perform 
  with 
  his 
  own 
  

   hands, 
  carry 
  the 
  reader 
  along 
  the 
  line 
  of 
  the 
  historical 
  develop- 
  

   ment 
  of 
  the 
  science 
  far 
  enough 
  to 
  prepare 
  his 
  mind 
  to 
  receive 
  

   willingly 
  and 
  intelligently 
  its 
  fundamental 
  principles 
  in 
  their 
  

   most 
  general 
  form. 
  The 
  theory 
  is 
  thus 
  developed 
  rigorously 
  and 
  

   with 
  unusual 
  clearness. 
  w. 
  b. 
  

  

  3. 
  A 
  Few 
  Chapters 
  in 
  Astronomy, 
  by 
  Claudius 
  Kennedy, 
  

   M.A., 
  pp. 
  150, 
  1895, 
  London 
  (Taylor 
  & 
  Francis). 
  — 
  Several 
  topics, 
  

   which 
  most 
  text-books 
  necessarily 
  ignore 
  or 
  dismiss 
  with 
  a 
  few 
  

   paragraphs, 
  are 
  here 
  treated 
  very 
  copiously 
  and 
  instructively, 
  

   e. 
  g. 
  the 
  deviation 
  of 
  projectiles 
  caused 
  by 
  the 
  rotation 
  of 
  the 
  

   earth. 
  w. 
  b. 
  

  

  4. 
  North 
  American 
  Birds, 
  by 
  H. 
  Nehrling; 
  with 
  36 
  colored 
  

   plates 
  after 
  water-color 
  paintings 
  by 
  Prof. 
  Robert 
  Ridgway, 
  

   Smithsonian 
  Institution, 
  Washington, 
  D. 
  C, 
  Prof. 
  A. 
  Goering, 
  

   Leipzig, 
  and 
  Gustav 
  Muetzel, 
  Berlin. 
  Milwaukee, 
  Wisconsin 
  

   (George 
  Boumder). 
  The 
  first 
  volume 
  of 
  this 
  attractive 
  popular 
  

  

  