Note 52 — J. E. MARR, M.A., F.R.S. (continued 3)
Reading edition
The reader may consult a paper by Prof. Lapworth "On Olenellus Callavei and its geological relationships," Geol. Mag. Dec III. vol. VIII. p. 529, for information concerning the relationship of the Olenellus beds of Shropshire to the more ancient rocks; the Uriconian rocks are described by Dr Callaway in a series of papers, especially in the Quarterly Journal of the Geological Society, vol. XXXV. p. 643, vol. XXXVIII. p. 119, vol. XLII. p. 481 and vol. XLVII. p. 109, whilst the lithological characters of the Longmyndian rocks are described by the Rev. J. F. Blake (Quart. Journ. Geol. Soc., vol. XLVI. p. 386).