. The Gardeners' Chronicle and Agricultural Gazette . a. Zinc division placediu neck of bottle. b. Bottle. c c. Reservoir for heatedatmosphere, in which forexperiment two candleslighted are placed. d. Lighted piece ofbrown paper applied todowncast shaft to indi-cate the means of ven-tilation by showing thesmoke traversing in andout of bottle. z. Zinc partition. desideratum—which is now universally acknowledgedin the growth of plants and fruit in glass houses—is. generally carried out in a manner as frequently fraughtwith evil as good results, by admitting too great acirculation of air or of co
. The Gardeners' Chronicle and Agricultural Gazette . a. Zinc division placediu neck of bottle. b. Bottle. c c. Reservoir for heatedatmosphere, in which forexperiment two candleslighted are placed. d. Lighted piece ofbrown paper applied todowncast shaft to indi-cate the means of ven-tilation by showing thesmoke traversing in andout of bottle. z. Zinc partition. desideratum—which is now universally acknowledgedin the growth of plants and fruit in glass houses—is. generally carried out in a manner as frequently fraughtwith evil as good results, by admitting too great acirculation of air or of cooling to too great a degree the heated atmosphere within our glass structures. 1 amquite satisfied that if the plan (or similar to it) adoptedin our north country collieries could be (as 1 have nodoubt it can) applied to glass structures, that is to say,the system of ventilation on the up-cast and down-castshaft principle, that the evils attending other modes ofventilation, especially strong currents of cold air, wouldbe obviated, and an incessant change of air obtainedwithout any appreciable diminution of heat within theglass house or pit. To this end I would simply apply anapparatus, invented I believe by a Mr. Watson, ofSheffield, to the highest point of a greenhouse, andwhich I will describe as follows:—It is a bottle-shapedcylinder, 6 to 10 inches diameter by the same inheight, with a neck (similar to a bottle) of the samalength, but not more than
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Keywords: ., bookcentury1800, bookdecad, booksubjecthorticulture, bookyear1859
