428 Notices of Memoirs — British Association. 



coloured clialk, ringing when struck with the hammer, jointed, and 

 with layers of irregular- shaped green-coated nodules. Sometimes, 

 however, it consists simply of one hard nodular layer. 



In the cutting on the South- Western Eailway just north-east of 

 Barford St. Mary (west of Salisbury), there is a good thickness of 

 the Upper (or flinty) Chalk, the flint occurring both in the form of 

 nodules and of thin tabular layers. From below this the Lower- 

 Chalk (which here contains a few flints) rises westward at a very 

 small angle ; it is hard and of a somewhat nodular structure, and at 

 (or close to) the top has a layer of green-coated nodules. This hard 

 nodular layer is the bed to which I wish to draw attention, not only 

 on account of its wide range and distinct character, but also because 

 it yields a somewhat peculiar set of fossils. 



A better section is given by a smaller cutting close by westward, 

 where the chalk-rock (dipping 2° or 3° eastward) forms a hard ledge 

 a foot or more thick, with green-coated nodules at its well-marked 

 top, sharply dividing it from' the chalk above, whilst on the other 

 hand it passes down into nodular chalk, both hard and soft, in which 

 another but fainter bed of the " rock" occurs about five feet below 

 the layer of nodules. There are flints in the Upper-Chalk, and thin 

 layers of marl in the Lower. 



As these sections are very near the outcrop of the Upper Green- 

 sand, it follows that the Lower Chalk and the Chalk Marl are com- 

 paratively thin here.^ 



IL — Forty-second Meeting of the British Association for the 

 Advancement of Science. Brighton, August 14th to 21st, 

 1872. Papers Eead before Section C. (Gteology.) 



E. A. C. Godwin-Austen, Esq., F.E.S., President. 



Address by the President, E. A. C Godwin-Austen, F.E.S. 



Prof. E. Hull, F.B.S.— On the Eaised Beach of the North-East of 

 Ireland. 



Jas. Howell — On the Supra- Cretaceous Formation in the Neighbour- 

 hood of Brighton. 



W. Topley, F.G.S.— On the Sub-Wealden Exploration. 



G. A. Labour, F.G.S. — On the Geological Distribution of Goitre in 

 England. 



W. Pengelly, F.B.S. — Eighth Eeport of the Committee for the Ex- 

 ploration of Kent's Cavern, Torquay. 



W. Pengelly, F.B.S. — Notes on Macliairodus latidens found in Kent's 

 Cavern, Torquay. 



W. B. Carpenter, M.D., V.P.B.S. — On the Temperature and other 

 Physical Conditions of Inland Seas, considered in reference to 

 Geology. 



Henry Hicks, F.G.S. — On the Cambrian and Silurian Eocks of 

 Eamsey Island, St. David's. 



1 A very good example of the " Chalk Eock " may be seen on the top of AVhite- 

 sheet Hill, South Wilts. It is there about three feet in thickness.— W. Gunnington. 



