Fig. 3. — Fair- Weather Cumulus Clouds 



These clouds, it should be observed, have level bases and rounded tops, with- 

 out the dome-like structure of figures — a type of cloud often seen after a spell of 

 rain. 



Photos by Henry 



Fig. 4. — Cirro-Cumulus Clouds 



Small round masses of clouds, usually at an elevation of 4 or 5 miles above the 

 earth's surface. These clouds are typical of fair weather 



