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 382
only ques-tion is, as to the expense of the concentrators,and the machinery requisite to keep them conti-nually at the proper angle to the suns rays. Wewish some person of leisure, ingenuity, and alittle spare money, would communicate with Mr.Gauen on this subject, and determine a number ofpoints… … Art. VIII. Retrospective Criticism. Position of Cottages.—Sir, Observing the liberal candour with which youcorrect your opinions, if your correspondents adduce reasons which appearto you better than your own, I venture to offer some remarks on passagesin your Magazine for July, 1827. In p. 478- (of…