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 195
its spring valve (a, in Jg. 29.) forwatering plants in pots which are at a consider-able distance from the operator. The continuous Syringe (Ardo-pompe, ouPompe continue), said to be invented by M.Petit, differs little, if at all, from Reids newhydraulic engine, figured in our Vol. XIII.p. 459. The… … Le Bon Jardinier > 1839. 167 The Extirpateur Courval {fig. 30.) differs from an instrument of the samekind which has long been in use, both in Scotland and England, for rooting updocks and thistles, chiefly in having the knob, h, instead of a piece of ironrivetted on in the form of an inverted…
