Publisher's Synopsis
"[...] TEMPERATURE AS AFFECTED BY DRAINAGE. Drainage Warms the Soil in Spring.-Heat cannot go down in Wet Land.-Drainage causes greater Deposit of Dew in Summer.-Dew warms Plants in Night, Cools them in the Morning Sun.-Drainage varies Temperature by Lessening Evaporation.-What is Evaporation.-How it produces Cold.-Drained Land Freezes Deepest, but Thaws Soonest, and the[...]."