| Teitl | "The Cleavage-Fan in the Silurian Rocks of the Denbighshire Moors and Clwydian Range" by P.G.H. Boswell D.S.c., F.G.S., reprinted from the Proceedings of the Liverpool Geological Society, part i, vol. xv. Signed: "R.O.F. Wynn [sic] Esq. with the Author's Comp" |