The gardener's magazine and register of rural & domestic improvement (1826)
Loudon, J. C. (John Claudius), 1783-1843, A. & R. Spottiswoode, printer, United States. Patent Office. Scientific Library, former owner DSI · London : Longman, Rees, Orme, Brown and Green · leaf 623
times the diame-ter of the tube, which was about 1 in. in diameter. It was applied to heata tub, containing a plant of Nelumbium speciosum, in a dry stove. Thetub contained, exclusive of the earth, about 10 gallons of water; and dur-ing the hottest days of last month it never increased the… … it, and was within 2 ft. of the glass.There was considerable circulation inthe tube, as was evidenced by observ-ing the animalcules drawn into thetube at one end and expelled at theother. This experiment was on asmall scale; but I fear it is sufficientto show that by this method no ma-terial…
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