98 S& P. Langley—Minute structure of the Solar Photosphere. 
The appearance of a window-pane covered with frost-figures 
would give a not inadequate idea of its effect, which was at 
I use the terms “foliate” and “ crystalline” as accurately 
descriptive of the appearance merely, without intending to 
apply them to the organic cause of the structure. Since writ- 
* Monthly Notices Roy. Ast. Soc., 1865. } Die Sonne, vol. i, p. 86 
