Trees protect moisture from rapid evaporation, and a wooded country is a blessing to its inhabitants, defending their dwellings from wind in mountainous districts. The denudation of the forests tends to destroy the moisture of the atmosphere, but has little effect on the sudden transitions from heat to cold. EDITOR. MR. WILLIAM B. HARISON. DEAR SIR:--Thank you very much for the box-kite. It arrived the day before yesterday, and works admirably. Truly yours, ELEANOR H. DEAR ELEANOR: We are glad you like the kite, and that it flies well. We witnessed a very funny attempt to fly one of our kites lately. It took the small owner of the kite, his mamma, papa, and two friends to make the effort, and even then failed, notwithstanding that the papa and the friend climbed the fence at the risk of their necks in their endeavor to reach the breeze. On serious reflection we decided that the kite did not fly because there was no breeze to fly it with, and therefore we recommend all our young friends to wait for the breeze before they endeavor to fly their kites. EDITOR.