XX. 



12th January. 



Sectional Committee met at 9.30 a.m. 



Section met at 9.30 in the Geology Department. 



Papers read :• — 



(1) " Relations of the Ore-bodies to Igneous Rocks of the 



Heemskirk — Comstock — Zeehan Area." 



(2) " The Heemskirk Massif, its structure and relationships." 



(3) " The Origin of certain Contact Rocks." 



All by L. K. Ward. 

 " On the Transport of Mud by a River in Flood." T. Steel. 

 " Coral Reefs of the Society and Cook Islands." Prof. 



Marshall. 



A visit was paid to the Mining Museum, George Street North, 

 at 2.30 p.m. 



13th January. 

 Papers : — 



" Precambrian Areas in the North-Eastern portions of South 



Australia and the Barrier, New South Wales." D. 



Mawson. 



" Notes on some Physiographic Problems." E. C. Andrews. 



" An Exhibit of Graphite-bearing Ore from Oueensland." 



C. Ball. 

 " A Catalogue of the Minerals of New South Wales, with 



Bibliography." By Dr. C. Anderson. 

 " Note on the Limitations of De Chaulnes' Method of Deter- 

 mining Refractive Index." By L. A. Cotton, 

 (fl) "Note on the Occurrence of Oxyrhinca in the Cretaceous 



of N.S. Wales." By W. S. Dun. 

 (h) " Notes on the Fauna of the Gympie Beds of Gympie, 



Queensland." By W. S. Dun. 

 " Some Examples of River Development in the Coastal Area 

 of New South Wales." By Dr. W. G. Woolnough. 

 The Section met in the Geology Department, Demonstration 

 Room. 



An exhibit of Alkaline Rocks, prepared by Dr. Jensen, was on 

 view in the Macleay Museum. 



Sections A and C. — Special Excursion to St. Ignatius' College, 

 Riverview. 



Section D. 



BIOLOGY. 



Section Committee (in addition to office-bearers). — Prof. W. B. 

 Benham, D.Sc, F.R.S., Prof. Haswell, D.Sc, F.R.S., and Prof. 

 H. B. Kirk, M.A., Drs. Chapman and G. Sweet and Mr. John 

 Shirley. B.Sc. 



