The Genesee Farmer 4(39): 311 (September 27, 1834)

Melons.

A French periodical gives the following method of hastening the ripening of melons. Spread on the melon and round it a thick couch of from one to two inches of pounded charcoal. Lampadius tried this plan at Friebuler in 1813, and succeeded in making melons ripen in a box of earth in the open air, during the summer of that year, in the mining district of Saxony. The surface of the earth thus covered with charcoal had at noonday a temperature of 37.50 to 47.50 of Reaumur, while at the same time the thermometer in the shade was only at from 15 to 20, and in the sun at 25 to 37.50.