Royal Society, 181 



will be soon necessary to apply their knowledge in the search for 

 coal in the old ridge of crumpled palseozoic rocks beneath its northern 

 border. 



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-Staifordshire 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 accompHshed 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 

 Europseo-Asiatic continent was a line passing through the Pyrenees, 

 the Alps, the northern shore of the Caspian, and the Altai Mountains. 



