And the various methods of distributing artificial heat, and their effects on animal and vegetable physiology. To which are added, an inquiry into the laws of radiant and conducted heat, the chemical constitution of coal, and the combustion of smoke. Fourth edition. This book, "A Practical Treatise on Warming Buildings by Hot Water, Steam, and Hot Air On ventilation", by Charles Hood, is a replication of a book originally published before 1869. It has been restored by human beings, page by page, so that you may enjoy it in a form as close to the original as possible.