Royal Society. 131 
will be soon necessary to apply their knowledge in the search for 
ei the old ridge of crumpled palzeozoic rocks beneath its northern 
order. 
The West of England has received a few touches here and there ; 
but the outcrops of the Cretaceous and Upper Oolite beds through 
Berks, Bucks, and Cambridgeshire have been carefully revised ; and 
so have the Oolites of Northamptonshire and Oxfordshire. Still 
more important is the improved work in the Warwickshire and Lei- 
cestershire Coal-fields, and in Charnwood Forest, with its Cambrian 
(if not older) rocks. The North-Staffordshire and Lancashire Coal- 
fields become, as it were, remodelled by the now accurate outlines of 
their areas; and the neighbourhood of Manchester, in particular, 
passes from an artificial to a natural appearance, geologically viewed. 
The great Permian range, from Durham southward, is taking its 
natural form on paper ; for the Survey has reached northwards much 
beyond Doncaster. The red sandstones of the Eden and of the west 
coast of Cumberland now appear in their true Permian colours ; and 
various spots in Northumbria also speak of the researches of several 
active geologists of to-day. Lastly, in Wales a few modifications of 
outlines in the Old Red and the complicated patches of igneous rocks 
may be noticed. The illustrated sections are repeated (with stronger 
lettering) on the margins, as heretofore. 
In this new map there are additions to the railways, bolder di- 
stinctive numbers to the different formations, and modifications in 
some of the tints; and an important mass of information is added 
in notes and remarks all around the coast. 
The general result is that we have a very useful and handsome 
Geological Map of England and Wales (12 miles to the inch), not 
so large as the “Greenough Map ”’ published by the Geological So- 
ciety of London, but constructed on the same basis, and containing 
a very large amount of useful information, clearly put by the master- 
hand of an accomplished geologist, and produced in good style by 
an intelligent publisher. 
PROCEEDINGS OF LEARNED SOCIETIES. 
ROYAL SOCIETY. 
April 26, 1866.—J. P. Gassiott, Vice-President, in the Chair. 
«On the Dentition of Rhinoceros leptorhinus (Owen).”’ By W. 
Boyd Dawkins, M.A., Oxon., F.G.S. 
The fossil remains of the genus Rhinoceros found in Pleistocene 
deposits in Great Britain indicate four well-defined species, Of 
these the R. tichorhinus, or the common fossil species, ranged 
throughout France, Germany, and Northern Russia, and, like its 
congener the Mammoth, was defended from the intense winter cold 
by a thick clothing of hair and wool. Its southern limit in the 
Europeo-Asiatic continent was a line passing through the Pyrenees, 
the Alps, the northern shore of the Caspian, and the Altai Mountains, 
