468 Reports and Proceedings. 
G. E. Roberts.—Notes on the Theory of Repulsion as illustrative of 
Physical Geology. 
Rev. W. Fox.—On a New Wealden Saurian named Polacanthus. 
(See Gror. Maa., Sept. 1865, p. 432.) 
W. Von Haidinger.—On the Progress of the Imperial Geological 
Institute of the Austrian Empire. 
L. P. Capewell.—Organic Remains of the 8. Staffordshire Coal-field. 
Notices or GEOLOGICAL PAPERS READ BEFORE THE BRITISH 
ASSOCIATION. 
GrotogicaL Mar or THE RuenisH Provinces AND WESTPHALIA, 
(5 EHEIMRATH Von-DecHEN and Prof. F. Rémer explained the 
large Prussian geological map of the Rhenish Provinces and 
Westphalia. Only one part was exhibited, which illustrated some 
prominent points in relation to the Devonian rocks.—Prof. Romer 
said the general interest of the map for geologists in this country 
was, that it represented that part of Germany in which the Devonian 
rocks were more fully developed than in any other country, not 
excepting England or America. In Germany there were the three 
great divisions in regular superposition, with a better record of ani- 
mal life than was to be found in the Devonian rocks in any other 
part of the world; and as the superposition of the strata was regu- 
lar, there was the certainty that nothing was wanting between the 
Upper Devonian and the lowermost of the Carboniferous series. 
On a Fossty SPIDER FROM THE CoAL-MEASURES, UPPER SILESIA, BY 
Pror. F. Romer. 
ee specimen to which the communication referred was found 
in a piece of shale from the Coal-measures. It is beautifully 
preserved, and shows not only the four pairs of feet with all their 
seements and the two palpi, but even the coriaceous integument 
of the body, and the hairs attached to the feet. The interest of 
the discovery of this spider lies in the fact that hitherto spiders 
have not been known from any rocks older than the Jurassic, and 
that now the existence of them in the Paleozoic period is proved. 
From the resemblance to the recent genus Lycosa, and its occurrence 
in the Coal-measures, the name of Protolycosa anthracophila was 
given to the species. 
Mr. Henry Woopwarp exhibited a New Cuart of Foss Crustacea (accom- 
panied by a descriptive Catalogue), designed and drawn by J. W. Sarrmr, 
F.G.S., and Henry Woopwarp, F.G.S. Engraved by J. W. Lowry, and 
published by J. W. Lowry and J. Tennant. London: 1868. 
HE Crustacea—represented at the present day by the Crab 
and Lobster, and an infinite variety of other forms—play such 
an important part in organic nature, that they well deserve our 
attention; whilst their fossil remains show them to have been pre- 
eminently the oldest of all living forms, Foraminifera only excepted. 
Their appearance is as varied as their structure is typical ; whilst 
their distribution and habitat, both recent and fossi/, are equally 
