No. 414. New Series.— Decade IV —Vol. V.— No. XII. Price Is. 6d. nett. 



THE 



GEOLOGICAL MAGAZINE 



outlili) Jaminal of (S^olojij, 



WITH WHICH IS INCORPORATKD 



"THE OKOLOG^IST." 



EDITED «Y 



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., Sec., 



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



HORACE BOLINGBROKE WOODWARD, F.R.S., F.G.S. 



DECEMBER, 1898. 



OO IsTTZBHSTTS. 



Okiginal Akticles. page 



1. Note on a Devonian Cojlacanth 

 Fish. By A. S. Woodward, 

 F.L.S., F.G.S. (With an Illus- 

 tration.) 529 



2. Notes on Lower Tertiary Shells 

 from Egypt. By R. Bullen 

 Newton-, F.G.S. (Plates XIX 

 and XX.) 531 



3. On a Deformed Ammonite from 

 the Gault of Folkestone. By 

 G. C. CpacK, F.G.S. (With an 

 Illustration.) 541 



4. Studies in Edrioasteroidea : I, 

 Dinocystis Barroisi. By F. A. 

 Bathek, M.A., F.G.S. (Plate 

 XXI and an Illustration.) 543 



5. Value of Type- Specimens. By 

 Professor 0. C. Marsh, M.A., 

 F.G.S 548 



6. Blind Trilobites. (Partlll.) By 

 F. E. Cowper Eeed, M.A , 

 F.G.S. (Concluded from p. 506.) 552 



7. Arenig Shales at Menai Straits. 

 By Edward Greenly, F.G.S. 

 (With two Sections.) 560 



8. On the Martley Quartzite. By 

 Prof. T. Groom, M.A., D.Sc, 

 etc. (With two Illustrations.) 562 



Original Articles — continued. page 



9. Glacier Motion and Erosion. By ' 

 E. M. Deeley, F.G.S. (With 

 a Section.) 564 



II. Notices op Memoirs. 



1. C'oinparative Value of Fossils in 

 Chronology. By Professor 0. C. 

 Mar,sh, Ph.D 565 



2. Cave-exploring in North Wales. 



By the Eev. G. C. H. Pollen ... 569 



3. Exploration of Caves at LTphill. 

 By the late Edward Wilson, 

 F.G.S 569 



4. Exploration of Fermanagh Caves. 



By Thomas Plunkett 570 



III. Eeviews. 



1. Dana's Text-Book of Mineralogy 571 



2. Professor A. H. Green's First 

 Lessons in Geology 672 



3. A. Strahan's Geology of Flint, 



etc 573 



IV. Eeports and Proceedings. 



Geological Society of London — 

 November 9, 1898 573 



V. Miscellaneous. 



1. Coal in Western Australia 576 



2. West Australian Gold 576 



With this Number is presented an Extra Sheet, containing Index and Title 

 for Decade IV, VoL V, 1888. 



LONDOIS": DULAU & CO., 37, SOHO SQUARE. 



ear The Volume for 1897 of the GEOLOGICAL MAGAZINE is ready, 

 price 20s. nett. Cloth Cases for Binding may be had, price Is. 6d. nett. 



