BY D. MAWSON. 



401 



(iv.) Bedded rocks underlying the recent raised reefs 

 (v.) Eecent raised reefs 

 (vi.) Recent fresh-water deposits ... 



(vii.) Evidence of faulting in Santo 



XocAL Features — Tangoa — Araki — Tasiriki-Tasmalum 



Tasiriki — Tasiriki to Talapone — Wuss 



.Sec. 3. Petrological Descriptions 



(i.) Efat^ soapstones 



(ii.) Raised reef limestone 



(iii.) Lepidocyclina-Lithothamnion limestones ... 

 (iv. ) Mineral tuffs ... 

 (v.) Perlitic hypersthene andesite glass ... 



(vi.) Hornblende andesite ... 



(vii.) Glomeritic basalt porphyrite... 



(viii.) Olivine basalt porphyrite 



(ix.) XJralite porphyry .. 



'Summary , 



Conclusions 



Appendix. — List of fossil forms identified at the Australian 

 from the recent raised reefs and foundation-beds 



Bibliography 



Explanation of Plates 



dORRIGENDA 



447 



448 



449 



449 



Track— 



450-453 



453 



453 



454 



455 



456 



456 



459 



462 



465 



467 



470 



473 



Museum 



477 

 479 

 482 



485 



PREFACE. 



The following paper on the geology of the Nevvr Hebrides, with 

 which are incorporated the Banks and Torres Groups, is the result 

 of six months' field work carried out under the auspices of Capt. 

 E. G. Rason, R.N., during the winter months of 1903. 



In an introductory note read before the Australian Association 

 for the Advancement of Science,* both Mr. W. T. Quaife 

 (biologist to the expedition) and myself have already acknow- 

 ledged our indebtedness to the various Presbyterian Missionaries 

 in the Group for their ever ready hospitality, and especially to 

 the Rev. F. Bowie, M.A., of Tangoa, and Rev. Dr. McDonald, 

 of Sema, by whose assistance districts otherwise inaccessible were 

 brought within our sphere of operations. 



Since our return, by the co-operation of Professor T. W. E. 

 David, F.R.S., the elaboration of the collections has been pushed 



* Report of the Tenth Meeting, Dunedin, 1904 [1905]. 

 26 





%.::'"K^ 



