Adamson, S, A. Notes on a recent discovery of Stigmaria ficoides at Clayton, Yorkshire, Quart. Journ. Geol. Soc., vol. xliv., p. 375. ——— On some sections exposed in making the Skipton and Ilkley Railway. Prof. Yorksh. Geol. and Polyt. Soc., N.S., vol. ix., p. 363. Barrow, George. The Geology of North Cleveland Geol. Survey Memoir, London, 1888. Bedford, J. B. Notes on flint-flake implements found in the Isle of Man. Proc. Yorksh. Geol. and Polyt. Soc., N.S., vol. ix., p. 369. Blake, J. F. On a Starfish from the Yorkshire Lias. Rep. Brit. Assoc., Manchester, 1887, p. 716. Boynton, Thomas. On the bronze implements found in the East Riding of Yorkshire. Proc. Yorksh. Geol. and Polyt. Soc., N.S., vol. ix., p. 426. Brownridge, Charles. On the occurrence of Quaitzite and other Boulders in the Lower Coal Measures at Wortley, near Leeds. Ibid, p. 405. Cash, William. On the fossil fructifications of the Yorkshire Coal Measures. Ibid, p. 435, pls. 22–29. Cole, Rev. E. Maule, Note on dry valleys in the chalk. Ibid, p. 343. Crosskey, H. W., and others. Report on the position, height above the sea, lithological character, size and origin of the Erratic Blocks of England, &c. Rep. Brit. Assoc., Manchester, 1887, p. 236. (Yorkshire Boulder Committee) Davis, James W. Note on a fossil species of Chlamydoselachus. Proc. Yorksh. Geol. and Polyt. Soc., N.S., vol. ix., p. 392. ——— On the Discovery and Excavation of an Ancient Sea-Beach near Bridlington Quay, containing Mammalian Remains. Rep. Brit. Assoc., Manchester, p. ...