PREFACE 



In closing the Fiftli Volume of the Geological Magazine, we 

 cannot omit to express our sincere thanks to our numerous friends, 

 especially to those who have furnished the Original Articles, 

 which, as a matter of course, are the very foundation of this volume. 

 We welcome some as new Geological contributors, but the chief 

 names are of old and valued supporters who have from the outset 

 given us their aid. 



Our volume for 1868 contains articles by Messrs. T. P. Barkas ; 

 Thos. Belt, C.E., F.G.S. ; E. Billings, F.G.S. ; W. Carruthers, 

 F.L.S., F.G.S, ; Thos. Davidson, F.K.S., F.G.S. ; D. C. Davies ; 

 T. Davies; W. Boyd Dawkins, M.A., F.E.S; C. E. De Eance ; 

 J. Evans, F.E.S., Sec. G.S. ; K. Etheridge, F.R.S.E., F.G.S, ; 

 Miss Eyton ; Eev. 0. Fisher, M.A., F.G.S. ; Messrs. David 

 Forbes, F.E.S., F.G.S. ; Archibald Geikie, F.E.S.L. & E. ; James 

 Geikie; J. E. Gregory; Prof. C. H. Hitchcock; T. McKenny 

 Hughes, B.A., F.G.S. ; Dr. T. Sterry Hunt, F.E.S. ; Capt. F. W. 

 Hutton, F.G,S. ; Prof. T.H. Huxley, LL.D., F.E.S., President Geol. 

 Soc. ; Prof. T. Eupert Jones, F.G.S. ; Messrs. J. Beete Jukes, M.A., 

 F.E.S., &c.; G. H. Kinahan, F.E.G.S.I. ; E. Eay Lankester, B.A. ; 

 H. Leonard, F.G.S. ; J. Logan Lobley, F.G.S ; Dr. G. Lindstrom ; 

 Dr. C. Lutken ; Messrs. D. Mackintosh, F.G.S. ; G. Maw, F.L. and 

 G.S. ; C. J. A. Meyer ; Prof. J. Morris, F.G.S. ; Sir Eoderick I. 

 Murchison, Bart., F.E.S. &c. ; Dr. H. A. Nicholson, M.B., F.G.S. ; 

 Messrs. S. E. Pattison, F.G.S. ; C. W. Peach ; John Euskin, M.A., 

 LL.D., F.G.S. ; G. Poulett Scrope, F.E.S., F.G.S. ; S. H. Scudder ; 

 H. G. Seeley, F.G.S. ; S. Sharp, F.S.A., F.G.S. ; Eevs.W. S. Symonds, 

 M.A., F.G.S. ; J. S. Tute, M.A. ; Messrs. J. F. Walker, B.A., F.G.S. ; 

 J. M. Wilson, M.A., F.G.S. ; S. V. Wood, junr., F.G.S. ; B. H. 

 Woodward, &c. 



Besides these, we are indebted for Notices and Eeviews to many 

 gentlemen whose names we have not authority to publish, but to 

 whom we sincerely tender our thanks. 



