﻿OPINIONS 
  OF 
  THE 
  PRESS. 
  

  

  Glasgow 
  Herald. 
  

  

  "It 
  is 
  written 
  in 
  a 
  manly, 
  dignified 
  spirit, 
  is 
  never 
  dull, 
  and 
  

   frequently 
  rises 
  into 
  true 
  eloquence. 
  Especially 
  is 
  it 
  notable 
  for 
  

   clearness 
  of 
  definition 
  and 
  exactness 
  of 
  illustration. 
  The 
  author 
  

   indeed 
  is 
  unsparing 
  in 
  his 
  denunciation 
  of 
  those 
  who, 
  writing 
  

   or 
  speaking 
  on 
  scientific 
  subjects, 
  use 
  vague 
  terms 
  which 
  may 
  

   be 
  understood 
  in 
  more 
  senses 
  than 
  one, 
  and 
  thus 
  lead 
  to 
  uncer- 
  

   tainty 
  or 
  confusion 
  of 
  mind. 
  With 
  this 
  fault 
  he 
  cannot 
  himself 
  

   be 
  charged. 
  The 
  abstruse 
  questions 
  which 
  he 
  takes 
  up 
  are 
  

   popularised 
  and 
  made 
  interesting 
  by 
  the 
  use 
  of 
  studiously 
  simple 
  

   language, 
  which 
  must 
  be 
  understood 
  by 
  any 
  one 
  of 
  ordinary 
  

   intelligence, 
  and 
  in 
  short 
  there 
  is 
  throughout 
  the 
  book 
  a 
  healthy, 
  

   invigorating 
  tone 
  of 
  thought 
  which 
  must 
  recommend 
  it 
  to 
  every 
  

   reader." 
  

  

  Literary 
  Churchman. 
  

  

  "Nothing 
  can 
  be 
  more 
  interesting 
  than 
  the 
  way 
  in 
  which 
  the 
  

   flight 
  of 
  birds 
  is 
  analysed 
  to 
  show 
  the 
  wondrous 
  play 
  and 
  

   counterplay 
  of 
  the 
  contrivances 
  by 
  which 
  the 
  laws 
  of 
  Nature 
  

   are 
  adjusted 
  to 
  work 
  out 
  the 
  Creator's 
  purpose. 
  Nothing 
  can 
  

   be 
  better 
  than 
  the 
  vivid 
  details 
  by 
  which 
  the 
  rich 
  plumage 
  of 
  

   birds 
  are 
  described 
  to 
  establish 
  that 
  'mere 
  beauty 
  and 
  mere 
  

   variety 
  for 
  their 
  own 
  sakes 
  ' 
  are 
  objects 
  sought 
  as 
  independently 
  

   in 
  th/e 
  works 
  of 
  Nature 
  as 
  in 
  the 
  works 
  of 
  Man." 
  

  

  h 
  

  

  

  

  STRAHAN 
  & 
  CO., 
  Publishers, 
  56, 
  Ludgate 
  Hill. 
  

  

  i 
  

  

  M 
  M 
  5 
  2 
  3.3.6.9 
  

  

  