No. 417. New Series.— Decade IV.— Vol. VI.— No. III. Price Is. 6d. nett. 



THE 



OCT 1 1900 



GEOLOGICAL MAGAZINE 



OR, 



WITH WHICH IS IN'CORPORATED 



THE GTEOLOG^IST." 



EDITED BY 



HENRY WOODWARD, LL.D., F.R.S., F.G.S., &c. 



ASSISTED BY 



ROBERT ETHERIDGE, F.R.S. L. & E., F.G.S., &c., 



WILFRID H. HUDLESTON, M.A., F.R.S. , F.L.S., F.G.S,, c&c., 



GEORGE J. HINDE, Ph.D., F.R.S., F.G.S. , &c., and 



HORACE BOl-INGBROKE WOODWARD, F.R.S., F.G.S. 



MARCH, 1899. 



OOlNrTZBItTTS. 



I, Original Articles. page 



1. Oil the Eastern Margin of the 

 North Atlantic Basin. By W. H. 

 HuDLESTON, M.A., F.E.S., 

 F.L.S., F.G.S., etc. (With 

 a chromo-lithographic folding 

 Map, Plate III ) 97 



2. Notes on the Geology of West 

 Swaziland. By Prof. T. Eupert 

 Jones, F.E.S., F.G.S. (With 

 Map and two Sections.) 105 



3. The Age of the Vale of Clwyd. 

 By A. Strahan, M.A., F.G.S., 



of H.M. Geological Survey Ill 



II. Reviews. 



1. Wachsmuth & Springer's Mono- 

 graph on Criuoids. (Sixth and 

 FinalNotice.) By F. A. Bather, 

 M.A., F.G.S 117 



Ee views — confimiecl. page 

 2 . Pent old' s New Edition of Brush' s 

 Mineralogy 128 



III. Eeports and Proceedings. 

 Geological Society of London — 



1. January 18, 1899 129 



2. February 1, 1899 130 



IV. Correspondence. 



1. Professor E. Hull, F.E.S 132 



2. Mr. F. A. Bather, M.A. , F.G.S. 

 (With a Woodcut.) 134 



V. Obituary. 



1. William Colchester, J. P., F.G.S. 136 



2. Professor H. A. Nicholson, 

 M.D., F.E.S. (With a Portrait, 

 Plate IV.) 138 



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