CONTENTS. 



PAPERS READ. 



Page 



12. Lady McRobert on Acid and Intermediate Intrusions and Associated 



Ash-Necks in the Neighbourhood of Melrose (Plates XLI-XLHI) 303 



13. Dr. A. Smith Woodward on the Lower Jaw of Dryopithecus fontani 



(Plate XLIV) 316 



14. Mr. E. B. Bailey on the Ballachulish Fold near the Head of Loch Creran 



(Plate XLV) 321 



15. Mr. P. W. Penny on the Relationship of the Vredefort Granite to the 



Witwatersrand System (Plates XLVI & XLVH) 328 



16. Mr. L. P. Spath on the Development of Tragophylloceras loscombi 



(Plates XLVin-L) 336 



17. Mr. J. B. Scrivenor on the Topaz-bearing Rocks of Gunong Bakau 



(Plates LI & LII) 363 



[No. 280 of the Quarterly Journal will probably be published at 



the end of December.] 



[The Editor of the Quarterly Journal is directed to make it known to the Public 

 that the Authors alone are responsible for the facts and opinions contained in their 

 respective Papers.] 



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 the discretion of the Officers to return the communication to the Author for revision. 



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