List of Papers Read at the British Association, Bristol. 521 



There were no signs of any markings upon them. Prof. James Hall, 

 of Albany, has informed the author that the true nature of the blocks 

 remains doubtful. 



The author in conclusion refers to a statement in a paper on Niagara 

 by Mr. Belt, F.G.S., published in the Quart. Journal of Science for 

 April, 1875, in which it is stated that the sections described as occur- 

 ring near the Falls are typical of the superficial beds that mantle 

 the whole of the northern part of the State of New York and Ohio 

 and much of Canada. He is unable to find any description of a deposit 

 which bears a near resemblance to the boulder-clay occurring in' the 

 district around the village of Theresa, in the descriptions of various 

 authors of the superficial deposits of the northern part of the State of 

 New York and Canada. He therefore ventures to remark that no 

 section can be considered as typical of the whole of the north part of 

 the State of New York which does not recognize the existence of the 

 deposit in question. 



14. "On a "Vertebrate Fossil from the Gault of Folkestone, which 

 also occurs in the Cambridge Greensand." By Prof. H. G. Seeley, 

 F.L.S., F.G.S. 



The author describes a bone having the general form of an incisor 

 tooth obtained from the Gault of Folkestone by Mr. J. S. Gardner, 

 F.G.S. The flattened cylindrical end of a specimen from the Cam- 

 bridge Greensand has been figured as a caudal vertebra of Pteroddctylus 

 simus. A microscopic section of the expanded end of a specimen from 

 the Cambridge Greensand exhibits ordinary osseous tissue, showing 

 that the fossil is probably a dermal spine from the tail of a Dinosaur. 

 The Gault specimen is smaller than the examples from Cambridge. 



II. — British Association for the Advancement of Science, 

 Bristol, August 26th to September 1st, 1875. List of 

 Papers Bead before Section C. (Geology.) 



President.— Dr. Thomas Wright, F.E.S.E., F.G.S. 



The President's Address. 



Handel CossJiam, F.G.S., Edivard Wethered, F.G.S., and Walter 

 Saise, F.G.S., Assoc. B. Sch. Mines. — The Northern End of the 

 Bristol Coal-field. 



J. MacMuririe,F.G.S. — On certain isolated areas of Mountain Lime- 

 stone at Luckington and Vobster. 



C. Moore, F.G.S. — On the age of the Durdham Down deposits 

 yielding Thecodontosaurus, &c 



W. Pengelhj, F.B.S. — Eleventh Beport on the Exploration of Kent's 

 Cavern, Torquay. 



B. H. Tiddeman, M.A., F.G.S. — Beport on the Exploration of the 

 Victoria Cave, Settle. 



Bev. H. W. CrossTcey, F.G.S. — Third Beport on Committee on Erratic 

 Blocks in England and Wales. 



E. B. Tawney, F. G.S. -^On the age of the Cannington Park Lime- 

 stone, and its relation to Coal-measures south of the Mendips. 



W. W. Stoddart, F. G.S. — On Auriferous Limestone at Walton, near 

 Clevedon. 



