Read 20th February, 1908. Manuscript received 8th October, 1908. When the Geological Survey Memoir on the Yorkshire Coalfield was published in 1878, the records of fossils from the measures above the Barnsley Coal were very meagre. Dr. Wheelton Hind, in 1895, summarised in his Monograph on the “Carbonicola, Anthracomya, and Naiadites” (p. 162), the particulars given in the Memoir regarding the Anthracosia ( Carbonicola ); and added details as to similar shells obtained from the horizons of the Stanley Shale (Scale) and Stanley Main Coals at Wakefield. References to Mr. W. Hemingway’s work in regard to plant remains will be found in the Proceedings of our Society for 1901 and 1902 (Vol. XIV., pp. 189–229 and 344–399), in Mr. R. Kidston’s papers on the “Flora of the Carboniferous Period.” In 1901, in the same issue of the Proceedings that contained the first of Mr. Kidston’s two papers, a list of fish remains from the Lower and Middle Coal Measures was published by Mr. Edgar D. Wellburn (Vol. XIV., pp. 171–174). In this list, a copy of which appeared in a recent issue of the Society’s Proceedings (Vol. XVI., Part II., 1907, p. 198), it is shown that fish specimens have been noted on five horizons, commencing with, and above, the Barnsley seam. In 1905, also in our Proceedings (Vol. XV., p. 330), the discovery was recorded, for the first time I believe in Yorkshire, of Anthracomya Phillipsi. This was at Cadeby, in some Red Coal Measures, about ten feet ...