A practical treatise on the culture and treatment of the grape vine: embracing its history, with directions for its treatment, in the United States of America, in the open air, and under glass structures, with and without artificial heat . openings for the cold air. The side view shows also the smoke-flue and the finish ofthe furnace, with a dead air chamber to receive any ashesthat may pass from this and prevent their entering the opening in the covering of the Polmaise, for the escape ofthe heated air, is shown, and this covering may be continuedas desired, and the heat led by brick
A practical treatise on the culture and treatment of the grape vine: embracing its history, with directions for its treatment, in the United States of America, in the open air, and under glass structures, with and without artificial heat . openings for the cold air. The side view shows also the smoke-flue and the finish ofthe furnace, with a dead air chamber to receive any ashesthat may pass from this and prevent their entering the opening in the covering of the Polmaise, for the escape ofthe heated air, is shown, and this covering may be continuedas desired, and the heat led by brick, or copper, or otherpipes to any spot desired. In the hot-air chamber may beplaced pans to contain water, that the heated air may havethe required moisture ; these can be regulated at pleasure,having more or less, or none at all, as the state of the houserequires. For instance, in the early stages of forcing, youwould require all the moisture that could be obtained in thisway. If, with such an apparatus, a fire was made to preservethe fruit from frost or other causes after it was ripe, probablyno moisture at all would be wanted. * This is copied from the Gardeners Chronicle, with some slight alterations. THE CULTURE OF THE B THE CULTURE OP THE GRAPE, 31 POLMAISE SYSTEM ATTACHED TO A FURNACE ALREADYCONSTRUCTED. I have had attached to a furnace already constructed, (andthat has been some time in use,) of dimensions similar to theone described, a system of circulation of the air which hasproved very successful. It is very simple. The furnace hasbeen enclosed, on the three sides within the house, with brickwork, leaving two or three inches of space only for the hot-air chamber on all sides, and this brick enclosure is continuedalong the sides of the flue, (where the heat is great,) forabout ten feet. The whole of this brick work is then coveredwith stones, placed two inches above the furnace, and theheat is led into any part of the house by a brick flue, coveredon the top
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Keywords: ., bookcentury1800, bookdecade1840, booksubjectviticul, bookyear1848
