V 



Reports and Proceedings— Geological Society of London. 379 



ledge of their intimate structure by MM. Munier-Chalmas, Schlum- 

 berger, and otbers, in Paris and elsewhere ; and quite lately J. J. 

 Lister, of Cambridge, has communicated new and very important 

 information about living forms to the Eoyal Society of London. 

 The fossil species and varieties are always being presented in memoirs 

 from one part of Europe or another, and occasionally from other 

 regions. England is not behindhand in this study ;— and of this 

 fact, F. Chapman's elucidation of the Foraminifera in the Chalk of 

 Taplow,— in the several Gault zones of Folkestone,— and quite lately 

 in the Bargate-stone of Surrey, is sufficient evidence. T. E. J. 



:k,:e]i=Os-ts j^'is^TD i3E-OGEJE;nDii:sra-S- 



Geological Society of London. 

 June 20th, 1894.— Dr. Henry Woodward, F.R.S., President, in 

 the Chair. The following communications were read : — 



1. " On Deep Borings at Culford and Winkfield, with notes on 

 those at Ware and Chesbunt." By W. Whitaker, Esq., B.A., F.RS., 

 F.aS., and A. J. Jukes-Browne, Esq., B.A., F.G.S. 



The four borings are described in detail, so far as the specimens 

 examined would permit ; these were few in the case of Culford, but 

 many from the other borings. The following is an abstract of the 

 formations traversed in each : — 



Culford. Winkfield. Ware. Cheshunt. 

 ft. ft. ft. ft.^ 



Surface Beds 6—17 14| 



LondouClay — 136 — 30 



Readino; and Thanet Beds — 78 — ^b^ 



Upper Chalk \ ..3 329 ? 183 ?273 



Middle Chalk r^^ 177 227 ?237 



Lower Chalk 143 219 1/3 183 



Upper Greensand — 31 40 44 



Gailt 73 264 166i lo3i 



Lower Greensand 32| 9 — — -^ 



Paleozoic Bocks 19i — 35 ^-'a 



657i 1243 84U lOH 



The interest of the Culford boring centres in its striking the 

 Paleeozoio floor at the small depth of 6371 feet ; but the age of the 

 slaty rocks cannot be determined. Although only 20 miles east of 

 Ely, no Jurassic rocks exist, and the Lower Cretaceous series is 

 only about 32 feet thick, the beds differing greatly from^ those 

 of Cambridgeshire, but resembling those of the same age m the 

 Eichmond boring. 



The Winkfield boring (31 miles W.S.W. of Windsor) is remarkable 

 for having been successful in obtaining water from the Lower 

 Greensand, and for the great depth (1243 feet) to_ which it was 

 carried for this purpose, the Gault being unusually thick. 



The boring at Ware is now for the first time described in detail, 

 and former accounts are corrected from specimens preserved by the 

 New Eiver Company. By this means, and with the assistance of 

 Mr. W. Hill, the authors are able to give a fairly complete account 



