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 421
redin at the top of the cylinder (e),so as to give the required motionto the float; and about half aninch of fine oil must be laid onthe top of the water (at c) toprevent evaporation. The vessel must be placed in front ot the upper part of theback wall, and at all times fully exposed to the light.… … 420 Transactions of the Horticultural Society. 1 he other near the floor of the house for the admission of cold air,will open and close again several times in the course of the day,particularly when the weather is showery, with intervals of brightsun. A common smith, who understands hanging…
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