344 me. j. b. scRivENOR on xhe [June 1 913, 



local publications deal with restricted areas, and are, moreover, 

 difficult of access to those who wish to study the geology of the 

 Peninsula. I think, therefore, that an attempt to communicate 

 to the Society in a connected form such evidence as has been 

 obtained since 1903 of the geological history of the Peninsula, 

 but without going into much detail, will not be out of place. 



The nature of the work carried on since 1903 has been economic ; 

 but, as is well known to field-geologists, it is impossible when 

 engaged on such work to close one's eyes to a mass of interesting 

 information that may have no direct economic bearing, and it is 

 this information that is now presented. It is necessary to add 

 that I make no claim to have completed a survey of the whole 

 Peninsula ; in fact, detailed geological surveying has been finished 

 in two portions of the Peninsula only : namely, Ulu Pah an g and the 

 Kinta District of Perak, wbile Mr. William Ilichard Jones com^ 

 menced the detailed survey of Selangor this year. Nevertheless, 

 sufficient evidence has been gained in the last nine years to give 

 a very fair idea of the outline of the geological history of the 

 Peninsula. 



It is not proposed to enter here into any lengthy discussion of 

 the previous literature dealing with the Malay Peninsula. I have 

 mentioned it elsewhere (Nos. 9 & 10 in the bibliographical list on 

 p. 343). The most remarkable point about it is the almost complete 

 unanimity with which mining engineers and others have given 

 the sequence of the rocks in an inverted order. I must, however, 

 express my gratitude here for valuable assistance in the form of 

 publications on palseontological subjects, to be mentioned later, by 

 Mr. II. B. Newton and the late Prof. T. P. Jones ; and also for 

 examination of palseontological material by Dr. A. S. Woodward, 

 Mr. G. C. Crick, Dr. G. J. Hinde, and Mr. H. N. Eidley. 



Of literature dealing with countries adjacent to the Malay 

 Peninsula, and that one has to consider in connexion with the 

 geology of the Peninsula, there is much that is of the greatest 

 interest. Some of this — such as the publications of the Geological 

 Survey of India and the ' Manual of the Geology of India ' — is well 

 known ; but I would especially emphasize the value of the little- 

 known though beautifully-executed geological maps of parts of the 

 Dutch East Indies, the result of the work of Dutch geologists, 

 whose memoirs are to be found in the scientific parts of the 

 Jaarboek van het Mijnwezen in Nederlandsch Oost-Indie. The 

 most important publications, apart from this annual, are the 

 results of Prof. Molengraaff s explorations in Central Borneo ' 

 and Messrs. Verbeek's & Pennema's ' Geology of Java & Madura.' 

 It is unnecessary to give a complete list here of the literature 

 published by workers in the Dutch East Indies bearing on the 

 geology of the Peninsula. 



1 ' Geological Explorations in Central Borneo ' English revised edition, 

 London, 1902. 



