Reports and Proceedings—Geological Society of London. 30 
hence the Geologist, as well as the Biologist, has an interest in this 
Bibliography, which we cordially recommend to both as highly 
necessary in their researches. 
IIJ.—Tasurar Inpex to THe Upper Cretaceous Fossits or Enc- 
LAND AND IRELAND, cited by Dr. Charles Barrois in his “ De- 
scription Géologique de la Craie de Ile de Wight,” Paris, 1875, 
and “ Recherches sur le Terrain Crétacé Supérieur de Angleterre 
et de l’Irlande,” Lille, 1876. By E. Wustiaxs, F.G.S. 4to. pp. 24 
(Fordingbridge, Mitchell, 1888.) 
HIS tabular list gives the geological distribution in the different 
zones of the Cenomanian, T'uronian and Senonian divisions, of 
405 species of Cretaceous fossils, referred to in the above-named 
works of Dr. Barrois; and also references to the localities where 
they occur. It appears to have been very carefully compiled, and 
should prove of very material assistance to all workers in the 
Cretaceous rocks of this and other countries. 
ee @ ee ae SS) ASN) Ee @ C saa INES 
————= > 
GroLoGIcAL Society oF Lonpon. 
I.— November 7, 1888.—W. T. Blanford, LL.D., F.R.S8., President, 
in the Chair.—The following communications were read :— 
1. ‘The Permian Rocks of the Leicestershire Coal-field.” By 
Horace T. Brown, Esq., F.G.S. 
The author considers that whilst rocks belonging to the Car- 
boniferous and Trias have been mapped as Permian, true represen- 
tatives of the Permian do exist in the district to a considerable 
extent. The Bunter conglomerates rest for the most part upon the 
truncated edges of Carboniferous strata; but intercalated between 
them and the Carboniferous, at various points, are thin beds of 
purple marly breccias and sandstones seldom exceeding from 30 
to 40 ft., but differing in lithological character from the overlying 
and underlying rocks. The brecciated series rests with striking 
unconformity upon the Carboniferous. Moreover, the Boothorpe 
fault, which throws the Coal-measures 1000 ft., affects the over- 
lying brecciated series to an extent of not more than from 20 to 
30 ft. The unconformity between the brecciated series and the 
Bunter is less obvious. Sections establishing the double uncon- 
formity were described in considerable detail. Attention was also 
called to other localities within the Coal-field where Permian rocks 
exist, the author having in many cases mapped their boundaries. 
He further called attention to certain beds which have been 
erroneously classed as Permian by the Survey. The first of these 
is a patch at Knowle Hills. Making extensive use of the hand- 
borer, he found that the greater part of the so-called Permian 
consists of a wedge-shaped piece of Lower Keuper let down by 
a trough fault. The so-called Moira grits belong to and are con- 
formable with the ordinary Coal-measures of the district. 
