296 
THE GEOLOGIST. 
Kent, Mr. Leech, Mr. Evans, and the author found some specimens at the 
foot of the cliffs between Heme Bay and the Reculvers. The author believes 
them to have been derived from a freshwater deposit that caps the clifiF, and 
•which has been found by Mr. Evans and himself to yield similar specimens 
at Swale ClifP near Whitstable. In Bedfordshire, Mr. J. Wyatt, F.G.S., has 
found some specimens in the gravel at Biddenham, near Bedford ; this gravel 
also is of freshwater origin, and is younger than the Boulder-clay. In 
Surrey, a specimen found in the gravel of Peasemarsh twenty-five years ago 
has been brought forward by its discoverer, Mr. Whitburn of Guildford. In 
Herts, Mr. Evans has found a specimen in the surface-drift on the Chalk 
Hills, near Abbots Langley. Ijastly, the author recommended that diligent 
search be made in the gravel and brick-earth at Copford and Lexden near 
Colchester, at Grays and Ilford in Essex, at Erith, Brentford, Taplow, Hurley, 
Beading, Oxford, Cambridge, Chippenham, Bath, Blandford, Salisbury, 
Chichester, Selsea, Peasemarsh, Godalming, Croydon, Hertford, Stamford, 
Orton near Peterborough, &c. 
3. "On the Corhicula (or Cyrend) Jluminalis geologically considered." By 
J. Gwyn Jeffreys, E.R.S., E.G.S. 
Mr. Jeffreys has identified the species of Corhicula found by Mr. Prestwich 
in a raised sea-beach at Kelsey Hill in Yorkshire with that of the Grays de- 
posit, as well as with the recent species from the Euphrates and the Nile. He 
mentioned the great tendency to variation in freshwater shells, and the distri- 
bution of the same species throughout different and widely separated parts of 
the world ; and he therefore considered that there was no difficulty in sup- 
posing that the Corhicula was contemporaneous in this country with Arctic 
shells found with it at Kelsey Hill. According to Mr. Jeffreys, specimens 
of Testacea from the north are larger than those of the same species from 
southern localities. 
J/^y22, 1861. 
1. "On the Geology of a part of Western Australia." By E. T. Gregory, 
Esq. Communicated by Sir R. I. Murchison, Y.P.G.S. &c. 
The author first described the granitic and gneissose tract of the elevated 
table-land ranging northwards from Cape Entrecasteaux and comprising the 
Darling Downs. The igneous rocks and quartz-dykes, the clays, sandstones and 
conglomerates capping the table-land ; and the carboniferous, cretaceous (?), 
and pleistocene rocks were described, and some evidences of the recent eleva- 
tion of the coast brought forward. The following fossils from Western Aus- 
tralia were exhibited : Carboniferous fossils and cannel-coal from the Irvin 
Biver; Eossils of secondary age {Trigonice, Ammonites, and fossil wood) from 
the Moresby Range ; fossil wood from the Stirling Range and from the Upper 
Murchison River ; Yentriculites in flint from Gingin ; and Brown-coal from the 
Eitzgerald River. 
2. " On the Zones of the Lower Lias and the Avicula contorta Zone." By 
Charles Moore, Esq., E.G.S. 
Referring to a paper on this subject, by Dr. Wright, which appeared in 
the sixteenth volume of the Society's Journal, the author stated that details 
of the section at Beer-Crowcombe (near Ilminster) in Somersetshire are now 
more fuUy known than they were when the Rev. P. B. Brodie, after having 
been .taken to see that section by the author, communicated to Dr. Wright 
the notes on it that are published in the paper above referred to. In the 
first place, Mr. C. Moore described the characters of the Liassic beds at 
Ilminster, and their relations to the Avicula cotitorta beds and the Keuper as 
seen in passing from Ilminster through Beer-Crowcombe to Curry-Rival and 
North Curry, — a distance of ten miles. He then treated of the subdivisions of 
the Lower Lias and the true position of the "White Lias;" and stated that. 
