﻿Westwood 
  Bequest. 
  

  

  Trans. 
  Ent 
  Soc. 
  LoncL, 
  1919, 
  PL 
  V. 
  

  

  '■•"iTj 
  '.?' 
  

  

  

  

  H. 
  Eltringliam, 
  photo. 
  

  

  B 
  

  

  C 
  

  

  D 
  

  

  (Oxford 
  University 
  Press.) 
  

  

  PHOTOGRAPHIC 
  COLOUE-VALUES 
  OF 
  FLOWERS. 
  

  

  