Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to John Walton Esq., the University, Manchester Informs that John Walton can have 12 copies each of his 2 papers in Transactions ['Contributions to the knowledge of lower carboniferous plants. I.—On the genus Rhacopteris, Schimper. II.—On the morphology of Sphenopteris Teiliana, Kidston, and its bearing on theposition of the fructification on the frond of some lower carboniferous plants' and 'On rhexoxylon, bancroft—a triassic genus of plants exhibiting a liane-type of vascularorganisation'] with 25% discount if the published price. 6 June 1928