Reviews — Murchison^s *' Siluria.** 85 



replete with its well-known fossils. This opinion was confirmed by 

 the examination of the rocks in question by Professor Kamsay, Pro- 

 fessor Harkness, the Kev. George Gordon, the Eev. J. M. Joass, and 

 others. 



" The existence, in strata of Devonian age, of reptiles of so high 

 a class as the Telerpeton (see fig. 73 in my last edition, p. 289) and 

 the Stagonolcpis was not, indeed, admitted by me without great 

 reluctance, inasmuch as, if eventually substantiated, it would have 

 weakened the main argument that runs through all my writings, 

 which shows a regular progression from lower to higher grades of 

 animals, in ascending from the older to the younger formations. 

 Most joyfully, therefore, did I welcome the remarkable identification 

 by Professor Huxley of the Hyperodapedon of the New Eed Sand- 

 stone of Warwickshire with the Hyperodapedon of Elgin ; and 

 bowing, as I have always done, to clear palasontological proof, I have 

 now excluded all that portion of my former editions which placed 

 these reptiles in the Old Eed Sandstone. 



" The importance of this rectification, due to my eminent associate, 

 has very recently received a wide extension ; for among the fossil 

 remains collected in India by the late Eev. S. Hislop, Professor 

 Huxley has also found the Hyperodapedon. 



" The formation in India containing this reptile has been con- 

 sidered by Professor Oldham, the Director of the Indian Geological 

 Survey, to be either the Trias (New Eed Sandstone) or the repre- 

 sentative of an intermede between the Palaeozoic and Mesozoic rocks. 

 In all probability this correlation will have to be extended to South 

 Africa, since one of the characteristic fossil reptiles of that country, 

 the Dicynodon, has been found in the Eanigunj beds of this age in 

 India." 



The Devonian rocks of Cornwall, Devon, and Ireland have evi- 

 dently received the most careful attention in this revised chapter xi., 

 Mr. Jukes's new views of the relations of these rocks having required 

 special consideration. With a clear knowledge of all former re- 

 searches, and supported by Messrs. Salter and Etheridge's late 

 examinations of the strata and fossils. Sir Eoderick groups the upper 

 portion of the Barnstaple band only with the Lower Carboniferous 

 Limestone -shale, the Devonian formations ending with the Pilton 

 and Marwood series, the latter of which may be the equivalent of 

 the " Coomhola Grits" of the South of Ireland. In Dingle, South- 

 eastern Ireland, the Lower Devonian schists, slates, grits, and sand- 

 stones lie comformably on the Upper Silurian ; and on these " Glen- 

 gariff Grits" (the Middle Devonian being absent) the Upper Old Eed 

 rests unconformably, and passes upwards into the Carboniferous 

 series, — a condition of things analogous to what is seen in the Pent- 

 land Hills. 



Chapter xii. treats briefly but comprehensively of the Coal-fields 

 of Great Britain and Ireland. Mr. Geikie has supplied a succinct 

 account of the Carboniferous series in Scotland, as worked out by 

 the Geological Survey. Of the Lower Carboniferous Eocks of Ire- 

 land, it is remarked that it is their " strong lithological resemblance 



