104 HAROLD’S DISCUSSIONS. 
sky on a summer day are parts of the cumulus. I 
suppose the Greeks had these cumulus clouds in mind 
when they spoke of Apollo’s cows. It is the cumulus, 
too, that shows us the silver lining. 
From a photograph by A. J. Henry. 
Fig. 56.—Typical large cumulus. (From Harrington’s About the Weather.) 
