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 586
bysimply placing one pot within another, the latter being a sizelarger than the former [fig. 131.), and uniting them at bottomwith a little Roman cement. The holesin the bottoms of both pots must beopened with a stick before the cementstiffens; otherwise, of course, the waterin the inner pot could… … Short Co77imunicaiions. 511 smaller or inner pot {a) will absorb moisture sufficient forthe nourishment of the plant, provided the material of thepot be not too hard burnt; the water between the pots canat any time be emptied out, and the outer pot will then act asa shade for the roots of the plant…