﻿594 
  Letters, 
  Eootracts, 
  Notices, 
  ^c. 
  

  

  the 
  Geological 
  Survey 
  of 
  Scotland, 
  and 
  Mr. 
  Eagle 
  Clarke, 
  of 
  

   the 
  Edinburgh 
  Museum 
  of 
  Science 
  and 
  Art, 
  as 
  has 
  been 
  

   related 
  with 
  strict 
  accuracy 
  in 
  the 
  ' 
  Annals 
  of 
  Scottish 
  

   Natural 
  History/ 
  No. 
  7, 
  p. 
  181, 
  July 
  1893. 
  It 
  will 
  thus 
  be 
  

   seen 
  that 
  the 
  earlier 
  record 
  is 
  not 
  the 
  one 
  which 
  can 
  claim 
  

   priority 
  as 
  its 
  right, 
  on 
  account 
  of 
  the 
  inaccuracies 
  which 
  I 
  

   have 
  now 
  pointed 
  out. 
  

  

  I 
  am 
  always 
  glad 
  to 
  hear 
  of 
  any 
  new 
  discoveries 
  in 
  con- 
  

   nection 
  with 
  Scottish 
  ornithology, 
  but 
  I 
  consider 
  it 
  would 
  be 
  

   graceful 
  to 
  place 
  the 
  acknowledgments 
  to 
  the 
  credit 
  of 
  those 
  

   who 
  both 
  gave 
  the 
  information 
  and 
  found 
  the 
  nest. 
  

  

  In 
  addition 
  to 
  the 
  above 
  remarks, 
  I 
  desire 
  to 
  draw 
  attention 
  

   to 
  facts 
  of 
  which 
  this 
  gentleman 
  takes 
  no 
  notice, 
  viz. 
  the 
  

   earlier 
  records 
  of 
  the 
  breeding 
  of 
  the 
  Snow-Bunting 
  in 
  other 
  

   parts 
  of 
  Scotland. 
  Amongst 
  them 
  I 
  may 
  mention 
  one 
  in 
  

   the 
  pages 
  of 
  'The 
  Ibis' 
  (1889, 
  p. 
  137) 
  which 
  is 
  worthy 
  of 
  

   acknowledgment, 
  and 
  also 
  two 
  previous 
  occasions 
  on 
  which 
  

   Mr. 
  Hinxman 
  and 
  Mr. 
  Peach, 
  of 
  the 
  staff 
  of 
  the 
  Geological 
  

   Survey 
  of 
  Scotland, 
  found 
  the 
  young 
  in 
  Sutherland 
  ^. 
  The 
  

   former 
  gentleman 
  also 
  found 
  the 
  young 
  in 
  West 
  Ross 
  in 
  

   the 
  following 
  season. 
  I 
  am. 
  Sir, 
  

  

  Yours 
  &c., 
  

   John 
  A. 
  Hakvie-Brown. 
  

  

  Turacin. 
  — 
  In 
  ' 
  Nature 
  ' 
  of 
  June 
  29th 
  appears 
  a 
  report 
  of 
  

   the 
  lecture 
  recently 
  delivered 
  by 
  Prof. 
  A. 
  H. 
  Church 
  before 
  

   the 
  Royal 
  Institution 
  upon 
  turacin 
  — 
  a 
  remarkable 
  animal 
  

   pigment 
  containing 
  copper. 
  Turacin 
  is 
  found 
  in 
  the 
  crimson- 
  

   coloured 
  portions 
  of 
  the 
  plumage 
  of 
  certain 
  genera 
  of 
  Muso- 
  

   phagidse 
  — 
  Turacus, 
  Gallirex, 
  and 
  Musophaga. 
  The 
  peculiar 
  

   interest 
  of 
  the 
  pigment 
  lies 
  in 
  two 
  of 
  its 
  jjroperties, 
  (1) 
  that 
  

   it 
  is 
  soluble 
  in 
  water 
  and 
  (2) 
  that 
  it 
  contains 
  a 
  definite 
  pro- 
  

   portion 
  of 
  copper. 
  In 
  this 
  latter 
  respect 
  turacin 
  is 
  almost 
  

   unique 
  — 
  the 
  only 
  other 
  copper-containing 
  organic 
  compound 
  

  

  * 
  See 
  ' 
  A 
  Vertebrate 
  Fauna 
  of 
  Sutherland, 
  Caithness, 
  and 
  West 
  

   Cromarty,' 
  by 
  T. 
  E. 
  Buckley 
  and 
  J. 
  A. 
  Harvie-Brown 
  (Douglas, 
  Edinb. 
  

   1887), 
  p. 
  140. 
  

  

  