Bark Stove
A hothouse adapted for moisture-loving exotics, and having a pit from 2ft. to 4ft. deep, containing fermenting matter, chiefly tanners' bark, by which means a steady heat is maintained for a considerable time. The Bark Stove is now almost obsolete. Bark is, however, still largely used in Pine pits, and in some propagating beds; but such beds are generally superseded by hot-water or hot-air tanks.