﻿Smithson 
  ; 
  an 
  Report 
  1922. 
  — 
  Humphrays. 
  

  

  Plate 
  26. 
  

  

  I. 
  Rainbow, 
  Primary, 
  Secondary, 
  andSupernumeraries:Seen 
  at 
  Aberdeen, 
  

  

  Scotland. 
  

  

  (G. 
  A. 
  Clarke, 
  photo.) 
  

  

  2. 
  Corona, 
  Triple, 
  and 
  22° 
  Halo. 
  

  

  Drawn 
  f 
  ora 
  observation, 
  by 
  G. 
  A. 
  Clarke, 
  Aberdeen, 
  Scotland. 
  

  

  