Fig. 5.—CIRRUS, OR CURL CLOUD.

"Who giveth rain upon the earth, and sendeth waters upon the fields."—Job v.

379. How many descriptions of clouds are there?

There are seven.

1. The Cirrus ([Fig. 5]), estimated range of altitude from 10,000 to 24,000 feet.

2. The Cumulus ([Fig. 7]), from 3,000 to 10,000 feet.