1867.J Geologij and Paleontology. 265 



noticed in our last Chronicle,* which he supplemented by a note 

 in the December number of the ' Geological Magazine.' Mr. 

 Forbes is very hard on Mr. Geikie's Chemistry, Mineralogy, and 

 Petrology. We should imagine, however, that Mr. Forbes would 

 hesitate before seriously opposing the w hydrothermal " theory ; and, 

 in fact, his hesitation is so great as to lead to contradiction (see p. 58). 

 It may be that Mr. J. Geikie's language is loose; but a good 

 cause has often an unskilful advocate. However, the moral of 

 Mr. Forbes's criticisms is doubtless true, namely, that Mr. J. Geikie 

 has been too eager to generalize on data, and perhaps with know- 

 ledge, insufficient for the task. 



Proceedings of the Geological Society. 



The number of the Geological Society's c Quarterly Journal ' 

 for the past quarter contains few papers ; but these are chiefly of 

 considerable merit. 



Professor Huxley's description of "some remains of large 

 Dinosaurian Keptiles from the Stormberg Mountains, South Africa," 

 is of considerable interest, on account of the uncertainty of the age 

 of the fossiliferous strata occurring in that region. The most 

 important of these remains belong to a new genus, named Euskele- 

 saurus by Professor Huxley, having affinities with Megalosaurus 

 and Iguanodon ; but no very definite conclusion can be drawn from 

 them respecting the age of the strata from which they were 

 obtained, as Dinosaurian reptiles have been discovered throughout 

 the Mesozoic formations — from the Triassic to the Cretaceous inclu- 

 sive. Professor Huxley also remarks that "the affinities of the 

 Thecodonts with the Dinosauria are so close that no one could be 

 surprised at the occurrence of the latter reptiles in rocks of Permian 

 age." According to Mr. Bain, the strata forming the Stormberg 

 mountains are "piled conformably above the Karoo-beds, which 

 have yielded the Dicynodonts and so many other remarkable true 

 reptiles and Labyrinthodonts," so that future discoveries of fossils 

 in the Stormberg rocks may enable us to place, at least, an upper 

 limit to the possible age of the Diet/nodon, about which there has 

 been so much discussion. 



The paper " On Marine Fossiliferous Secondary Formations in 

 Australia," by the Kev. W. B. Clarke, is worth considering, as a 

 great deal of speculation on the cause of the Mesozoic facies of the 

 recent Australian fauna has been based upon the supposed absence 

 of such deposits from the Australian continent ; but we must refer 

 our readers to the paper itself for the evidence brought forward by 

 the author. 



The most important paper in the journal is that by Dr. Duncan, 



* ' Quart. Journ. Science,' No. XIII., p. 121. 



