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 160
perpendicular to the suns rayson any particular day of the year. He says, I cannot answer for the accuracy of the inclination for thewalls, as the only mode I made use of to ascertain the sunselevation was by means of three laths [Jig. 46. a b c), nailedtogether as a triangle,and, in order to… … On grafting the Peach on Peach Stocks. 149 tion of the wall on which the sun would shine verticallyon the 22d of August, the day on which I tried to ascer-tain the point. Of course, one of the nails on the stickresting on, or parallel to, the surface of the water was notfixed, till, by elevating…
