No. 383. New Series.— Decade IV.— Vol. III.— No. V. Price Is. 6d. nett. 



THE 



GEOLOGICAL MAGAZINE: 



OR, 



JKonthlg Jouqnal of (Sfoloflg. 



WITH WHICH IS INCORPORATED 



THE GEOLOGIST." 



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 ; 



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



and HORACE BOLINGBROKE WOODWARD, F.G.S. 



MAY, 1896. 



OOITTEUTS. 



Plate VIII, Portrait of Chakles 

 Wachsmuth, to accompany 

 Obituary Notice, page 189, in 

 the April Number. 



I. Original Articles. 



1. The Morphology of Triarthrus. 

 ByC.E.BEECHER, Esq. (With 

 Plate IX.) 193 



2. The Acanthoceras mammillatum 

 and Iloplit/s interruptus Zones 

 in Dorset. By R. Bullen 

 Newton, F.G.S 198 



3. The "Pleistocene Beds" of the 

 Maltese Islands. By John H. 

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

 Section.) 201 



4. Altered Clastic Bocks of the 

 Southern Highlands. By Peter 

 Macnair, Esq. (With three 

 Sections.) (Continued from the 

 April Number, p. 174.) 211 



5. The Old Bed Sandstone of 

 Scotland. By Peter Macnair 

 and James Beid, Esqs 217 



Original Articles — continued. page 

 6. On the Old Bed Sandstone and 

 Carboniferous Bocks of the 

 Island of Arrau. By James 

 Neilson, Esq., Vice-President 

 Glasgow Geol. Soc. (Concluded 

 from the April Number, p. 161.) 222 



II. Beviews. 



1. Ice- Work, Present and Past. 

 By T. G. Bonney, LL.D., 

 F.B.S., F.G.S., etc 228 



2. Geology and Scenerv of Suther- 

 land " By II. M. Cadell, 

 F.R.S.E., "F.G.S 231 



III. Beports and Proceedings. 



Geological Society of London — 



1. February 26th, 1896 233 



2. March 11th, 1896 235 



3. March 25th, 1896 237 



IV. Obituary. 



The Hon. Walter Baldock D. 

 Mantell, F.G.S 239 



V. Miscellaneovs. 



The Geological Survey of Grpat 

 Britain 240 



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fcf- The Volume for 1895 of the GEOLOGICAL MAGAZINE is now ready, 

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