Reviews — Mortons Geology of Shelve, Shropshire. 519 



Coal-fields of Soutli Staffordshire, Coalbrook-dale, and the south-west 

 of Shropshire," upon which " the Coal-measures were formed, each 

 seam representing the growth and decay of a tropical forest" (p. 43), 

 is quite tenable ; on the contrary we believe it to be more probable 

 that the Coal-beds were formed in a wide river- valley, subject to 

 tidal overflows, and thus affording that admixture of marine and 

 freshwater conditions which the fauna and flora of the Coal-measures 

 indicate. 



Miss Eyton has devoted considerable time and attention to the 

 later deposits, as well as to the more regular and older rock-forma- 

 tions. Thus we find chapters on the Glacial and Marine Drifts — 

 the Lake and Forest period. The changes of the surface resulting 

 from atmospheric denudation, and the alterations in the relative 

 level of the sea and land, have also been carefully studied by the 

 authoress. We are much interested by Miss Eyton's book, and re- 

 commend it to all who wish to know something of the Geology of 

 North Shropshire. 



lY. — The Geology and Mineral Veins of the Country around 

 Shelve, Shropshire, with a Notice of the Breidden Hills. 

 By G. H. Morton, F.G.S., F.E.G.S.I., President of the Liverpool 

 Geological Society. (Extracted from the Proceedings of the 

 Society, 1868-9.) Liverpool. 8vo. pp. 41. 



IN this article we are introduced to a remote, and but little 

 known district in Western Shropshire, once a part of the 

 ancient kingdom of the Silures, from which the name to the far 

 wider " Silurian System" was derived, and where the Lower Silu- 

 rian (Llandeilo) series is prominently developed. 



This locality is not only interesting to the geologist and palEeon- 

 tologist, but the antiquary and historian may here also examine 

 numerous Druidical circles, ancient encampments, and barrows, 

 with Eoman remains ot various kinds, including traces of extensive 

 lead-mines on Shelve-hiU marked by pottery, coins, oaken spades, 

 and Eoman pigs of lead (preserved in the Liverpool and British 

 Museums), and bearing the name of the Emperor Hadi'ian. 



Mr. Morton mentions the discovery of ancient smelting-places, 

 some of which are probably Eoman. The author gives several 

 geological sections in order to show the relation of the eruptive 

 Greenstone of Corndon Hill to the Lingula Flags, Llandeilo beds, 

 Cambrians, etc., which have been elevated by it, or which rest upon 

 its flanks. Lists of the fossils which mark the Upper and Lower 

 Llandeilo, the Upper Llandovery rocks, etc., are also given. Mr. 

 Morton likewise describes and maps the mineral veins, showing 

 their compass-bearings and the various minerals they have yielded. 

 The author concludes with a brief sketch of the Breidden Hills. 



