26 



GEOLOGY. 



and the Gault is incomplete. Traces the beds through Cambridge, 

 Beds., and Bucks., and shows that in passing from Cambridge S.W. 

 the Upper Gault first appears near Barton, the true Upper Greensand 

 near Tring. The Gault is only from 103 to 120 feet thick near Cam- 

 bridge ; it gradually thickens, W., and is from 204 to 214 feet near Arlesey 

 and Hitchin ; this increase is chiefly due to the incoming of higher 

 beds westwards. At Folkestone the Upper Gault is succeeded by Upper 

 Greensand. At Aylesford the true Upper Greensand is absent, and the 

 Upper Gault had been partially denuded before the deposition of the 

 Chalk Marl ; at the base of this there is a phosphate-bed derived from 

 the denuded beds. The fossils of the Cambridge Greensand are divided 

 into two series : — 1, those proper to the deposit ; 2, those derived 

 from, other formations. The number of invertebrate species is 254 ; 

 210 of these are derived, and their chief affinity is with those of 

 the Upper Gault. The paper contains lists and tables of fossils, and 

 concludes with remarks on some of the species. W. T. 



^ Keeping, W. On the Occurrence of Neocomian Sands with Phos- 



phatic Nodules at Brickhill, Bedfordshire. Geol. Mag. dec. 2, 



vol. ii. pp. 372-375. 



Sand with scattered nodules (30 ft.) rests on Oxford Clay. 20 



species, proper to the deposit, are named ; of these, 14 occur at Upware, 



12 'at Farringdon, and 7 in all three places. Sponges are rare. The 



derived fossils are chiefly from the Kimmeridge Clay. W. T. 



Kempthorne, P. H. The Cave Men. bih Ann. Rep. Wellington 



Coll. Nat. Sci. Soc. pp. 45, 46. 

 Kote of Kent's Cavern. 



Kerr, James. On Lead Mining in the districts of Stansfield, Holmes 



Chapel, Bossendale, and Great Hambledon, N."W. Yorkshire and 



N.E. Lancashire. Trans. Manch. Geol. Soc. vol. xiii. pp. 344- 



360. 



Adds farther details to those given by Mr. DeRauce (Geol. Mag. 



1873) as to the locality, methods, and dates of working the various 



mines, which appear to have commenced in 1753, and to have been 



given up through poverty of the lodes. C. E. DeE. 



Ketley, C. The Search for Coal under the '' Red Rocks " of the 

 South StaiFordshire Coal Field. Geol. Mag. dec. 2, vol. ii. pp. 193- 

 198. 



Recent researches have shown that much of the " Red Rock " 

 hitherto classed as Permian belongs to the -Coal Measures ; the 

 author doubts whether any of the beds passed through at Sandwell 

 Park are Permian. The highest beds of coal here found seem to be 

 new. This pit is sunk at a spot where the Coal Measures were sup- 

 posed to be absent, and the Permian to rest on beds below the coal, 

 probably on Silurian rocks. W. T. 



