i8 



NOTES — GEOLOGY AND PALi^:ONTOLOGY. 



generally as the Boulder Committee of the British Association, to 

 whom annual reports will be presented.' An influential committee 

 of gentlemen resident in the three Ridings of Yorkshire was then 

 formed, with Mr. Samuel A. Adamson, F.G.S., of 52, Wellclose 

 Terrace, Leeds, as hon. secretary. Mr. Adamson will be glad to 

 forward schedules to record observations upon to anyone knowing 

 of isolated erratic blocks or boulders, or groups of boulders — that is, 

 in other words, masses of rock, evidently transported by natural 

 agency from some locality more or less remote. Geologists have for 

 some time recognised the great importance of this special subject, as 

 its careful study will explain many of the phenomena of the glacial 

 epoch, and will clear away many of the speculative theories involved 

 in glacial geology. The Yorkshire Boulder Committee is now an 

 accomplished fact, and if local and county geologists will give their 

 assistance, signal service will be rendered to the British Association 

 in their endeavours to promote geological science. Dr. Crosskey, of 

 Birmingham, the eminent glacialist, and secretary to the Boulder 

 Committee of the British Association, has written, giving practical 

 hints and valuable instructions for procedure, expressing his delight 

 that Yorkshire geologists are about to engage in such good work, and 

 also further expressing his appreciation by becoming an honorary 

 member of the Yorkshire Committee. 



NOTES— GEOLOGY AND PALEONTOLOGY, 



Fossil Polyzoa in Lincolnshire.— Through the kindness of Mr. H. 

 Wallis Kew, of Louth, I have received four specimens of a Polyzoon from the 

 Neocomian Clays of Donington-on-Bain. This is the first time that I have been 

 able to examine a fossil Polyzoon from Lincolnshire, and the species is either new, 

 or allied to foreign examples of the Entalophora gracilis {Cei'iopora gracilis) Gold- 

 fuss. On account of the peculiar ' closure ' of the aperture, one of the specimens 

 will merit closer study and fuller description, but as Mr. Wallis Kew expressed a 

 desire that I should make a note of the fossil for publication in the Naturalist, I 

 have complied with his request, thanking him for the present, and hoping that he 

 will be able to find other Polyzoa in the strata of his neighbourhood. If he should 

 succeed I shall be glad to examine them in detail. — G. R. Vine, Sheffield, Nov. loth. 



Exposure of a Fault at Apperley.— Mr. Wm. Cheetham, vice- 



President of the Leeds Geological Association, reports that travellers on the 

 Midland Railway between Leeds and Bradford may, at present, see at Apperley a 

 splendid example of what is known geologically as a 'fault.' 'Faults' or dis- 

 locations of the strata are caused by the movements to which the crust of the earth 

 has been subjected, by which the strain has been so great that the continuity of the 

 strata has been disturbed. This fault is the one shown on the Geological Survey 

 Map as passing nearly S.W. by N.E. through Apperley Station to Buckstones. 

 The Midland Railway Company in their extensions now being made at Apperley 

 to provide space for a waiting room, are having the rock cut away up the side of 

 the north platform. This grandly exposes the above-named fault, the rough rock 

 being on either side. It may be seen that to the east it is a solid mass dipping 

 slightly to the S.E., whilst on the west the dip is slightly greater, but to the N.W., 

 the rock being considerably shattered. The line of fracture is represented by a 

 band of crushed and broken rock (Fault Rock) about two feet in thickness. Such 

 a clear exposure of a prominent geological feature is rarely to be seen, and certainly 

 deserves a report. — S. A. Adamson, November nth, 1886. Naturalist, 



