THE 



GEOLOGICAL MAGAZINE. 



NEW SERIES. DECADE II. VOL. VI. 



No. IX.— SEPTEMBER, 1879. 



OBIGHfTAL AETICLES. 



I. — Notes on a Collection of Fossil Shells, etc., from 

 Sumatra (obtained by M. Verbeek, Director of the 

 Geological Survey of the West Coast, Sumatra). Part I. 



By Henry Woodward, LL.D., F.R.S., F.G.S., etc.; 



of the British Museum. 



(PLATE X.) 



FOUR years ago M. R. D. M. Verbeek, Director of the Geological 

 Survey of the West Coast, Sumatra, placed in the hands of my 

 friend Prof. T. Rupert Jones, F.R.S., for description, a collection of 

 fossil remains obtained by him in the prosecution of his geological 

 researches in Central Sumatra, accompanied by some notes and 

 sections of the geology of this little-known region of the globe. 



These notes have already appeared, 1 and a portion of the fossil 

 remains has also been published in this Journal. 2 It is now proposed, 

 as far as practicable, to complete the description of the Invertebrate 

 remains forwarded by M. Verbeek, to illustrate which six excellent 

 plates have already been drawn by Mr. C. L. Griesbach, F.G.S. 3 



Palaeozoic Bocks. — The oldest rocks of Central Sumatra appear to 

 consist of granites, granite- syenites, and syenites in several modifica- 

 tions. Next in order follow sedimentary rocks, which are probably 

 of either Carboniferous or Permian age, as they contain Fusulince, 

 only met with in rocks belonging to the Carboniferous and Permian 

 periods (Verbeek, op. cit. p. 478). 



The species of Fusulina from the Carboniferous Limestone, Padang 

 Highlands, West Coast of Sumatra, has been referred by Mr. H. B. 

 Brady to Fusulina princeps, Ehrenberg, sp. (see Geol. Mag. 1875, 

 p. 537, Plate XIII. Figs. 6 a, b, c). The only other Palaeozoic fossils 

 which remain to be noticed are represented on our Plate X. Figs. 1, 

 2, and 3, Brachiopoda belonging to the genera Spirifera and Productus. 



1 See Geol. Mag., 1875, Decade II. Vol. II. pp. 477-486, and op. cit. 1877, 

 Dec II. Vol. IV. pp. 443-444 (Plate XIV.). 



2 The Fossil Foraminifera, by Henry B. Brady, F.R.S., Geol. Mag., 1875, Dec 

 II. Vol. II. pp. 532-539 (Plates XIII. and XIV.). The Fossil Fishes, by Dr. A. 

 Giinther, V.P.R.S., Geol. Mag., 1876, pp. 433-440 (Plates XV.— XIX.). 



3 This memoir and its illustrations are, like the former communications, published 

 with the authority and assistance of the Dutch- Indian Government. 



DECADE II. — VOL. VI. — NO. IS. 25 



