Describe the difference between stratiform versus cumulusform clouds.

Cumulus clouds are the puffy ones that people usually draw and see when they look up. They remind some people of cotton balls. Stratus clouds are the flat ones that take up the whole sky and are usually the ones you see when it's raining and such. 

Stratiform is a lower elevation than most, gray, and flat-bottomed in appearance. Cumulusform are tall fluffy and puffy thunder clouds.

Early in the story when tom finds an indian skull in the woods which he kicks in temper. the devil then makes his appearance and, as tom surveys him, he notices that the devil is neither "negro" nor "indian." in fact, he has a "swarthy" complexion and is "begrimed with soot."

Temperature, rainfall and relative humidity.