. The grape vine: its culture, uses, and history. Fig. 2. Section of house, showing bottom heatchamber, cold air drains, and direction of the cur-rents ; a, entrance for cold air; b, cold air drains ; e,bottom heat chamber. l£ Fig. 3. Longitudinal section of house, showing hotair chamber, furnace built of Stourbridge brick, andsurrounded with two inches of sand, and covered overwith a half-inch iron plate in three widths ; the cis-tern is made of iron, four inches deep, in two divi-sions, and fed through a pipe from above; the roofhas a cavity to be filled with sawdust, to prevent thee
. The grape vine: its culture, uses, and history. Fig. 2. Section of house, showing bottom heatchamber, cold air drains, and direction of the cur-rents ; a, entrance for cold air; b, cold air drains ; e,bottom heat chamber. l£ Fig. 3. Longitudinal section of house, showing hotair chamber, furnace built of Stourbridge brick, andsurrounded with two inches of sand, and covered overwith a half-inch iron plate in three widths ; the cis-tern is made of iron, four inches deep, in two divi-sions, and fed through a pipe from above; the roofhas a cavity to be filled with sawdust, to prevent theescape of heat; c, entrance for hot air; d, furnace. Ventilation.—The accumulation of gaseous mat- 35 ters, such as sulphurous acid and ammonia, and theconsumption of carbonic acid, render ventilation essen-tial to the health of vines, and of all plants in hot-houses. They cannot inhale air overloaded with thesecontaminations without being speedily injured, andthe proportions of those gases which rapidly causedisease or even death, are much less than the gardenerusually suspects; for if the sulphurous acid amountsto no more than one cubic foot in ten thousand ofthe air in a hothouse, it will destroy most of its in-habitants i
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Keywords: ., bookcentury1800, bookdecade1840, bookpubl, booksubjectviticulture
