﻿PREFACE. 
  Ill 
  

  

  Zoological 
  Society' 
  (1884, 
  1885, 
  1891), 
  to 
  illustrate 
  

   papers 
  of 
  mine, 
  and 
  have 
  been 
  copied 
  with 
  the 
  sanc- 
  

   tion 
  of 
  the 
  Committee 
  of 
  Publication 
  of 
  that 
  Society. 
  

  

  The 
  figures 
  in 
  the 
  text 
  have 
  been 
  drawn 
  by 
  Mr. 
  J. 
  

   Green, 
  and 
  reproduced 
  by 
  the 
  Typographic-Etching 
  

   Company. 
  Most 
  of 
  them 
  are 
  original 
  ; 
  if 
  copied 
  from 
  

   other 
  works, 
  the 
  source 
  has 
  in 
  every 
  case 
  been 
  referred 
  

   to. 
  A 
  few 
  cuts 
  illustrating 
  a 
  paper 
  by 
  me 
  on 
  Tadpoles 
  

   in 
  the 
  ' 
  Proceedings 
  of 
  the 
  Zoological 
  Society 
  ' 
  for 
  1891, 
  

   and 
  another 
  by 
  Dr. 
  Ridewood 
  on 
  the 
  development 
  of 
  

   the 
  hyoid, 
  published 
  in 
  1897, 
  have 
  been 
  reproduced 
  

   by 
  permission, 
  for 
  which 
  I 
  beg 
  to 
  tender 
  my 
  acknow- 
  

   ledgments 
  to 
  the 
  Committee 
  of 
  Publication 
  of 
  the 
  

   Zoological 
  Society. 
  

  

  1 
  also 
  wish 
  to 
  publicly 
  express 
  my 
  thanks 
  to 
  Sir 
  

   W. 
  H. 
  Flower, 
  K.C.B., 
  and 
  to 
  the 
  Rev. 
  Professor 
  

   Wiltshire 
  for 
  the 
  interest 
  they 
  have 
  shown 
  in 
  the 
  

   publication 
  of 
  this 
  work; 
  and 
  to 
  the 
  various 
  friends 
  

   and 
  correspondents 
  who 
  have 
  assisted 
  me 
  with 
  notes 
  

   or 
  material, 
  especially 
  Dr. 
  W. 
  G. 
  Ridewood, 
  to 
  whom 
  I 
  

   am 
  indebted 
  for 
  many 
  hints 
  and 
  preparations 
  ; 
  M. 
  F. 
  

   Lataste, 
  who 
  has 
  placed 
  his 
  private 
  collection 
  at 
  my 
  

   disposal 
  ; 
  Dr. 
  J. 
  de 
  Bedriaga, 
  Count 
  M. 
  Peracca, 
  Mr. 
  

   F. 
  A. 
  Moller, 
  Dr. 
  F. 
  Werner, 
  and 
  Herr 
  W. 
  Wolter- 
  

   storff, 
  who 
  have 
  supplied 
  me 
  with 
  an 
  abundance 
  of 
  

   living 
  specimens 
  from 
  France, 
  Italy, 
  Portugal, 
  Austria, 
  

   and 
  Germany 
  ; 
  and 
  Messrs. 
  Chevrenx 
  and 
  Doumergue, 
  

   through 
  whose 
  kindness 
  I 
  have 
  been 
  able 
  to 
  make 
  

   observations 
  on 
  a 
  large 
  number 
  of 
  living 
  specimens 
  of 
  

   Biscoglossus 
  from 
  Algeria. 
  

  

  G. 
  A. 
  B. 
  

  

  British 
  Mttseum 
  (Natural 
  History) 
  ; 
  

   Octoher 
  28th, 
  ] 
  897. 
  

  

  