PRESIDENTS ADDRESS. 547 



published last year by the Department of Mines, is an important 

 event in the annals of Australian geology. The map is a great 

 advance on its predecessors, and presents a harmony of colour 

 and clearness of delineation which make it at once artistic and 

 intelligible. 



The paper by Professor Tate and Mr. J. T. Dennant, " On a 

 Correlation of the Marine Tertiaries of Victoria and South Aus- 

 tralia," contains much new material, and has quite reconstructed 

 the classification previously adopted for those formations. The 

 Records of the Geological Survey of N. S. Wales, published by 

 the Department of Mines last year, give an account of nearly 

 all the additions made to our knowledge of the geology of New 

 South Wales during 1893. Two very useful papers for reference 

 purposes deserve special notice : " The Australian Geological 

 Record for the year 1892, with addenda for the year 1891," by 

 R. Etheridge, Junr., Palseontologist and Librarian, and W. S. 

 Dun, Assistant Palaeontologist and Librarian"^ ; and " A Locality 

 Index to the Reports of the Geological Survey of N. S. Wales, 

 from 1875 to 1892 inclusive," by W. S. Dun, Assistant Palaeon- 

 tologist and Librarian.! 



It is to be hoped that these authors may continue to follow this 

 good precedent during this and succeeding years. 



The special subject of this address is a sketch of our present 

 knowledge of the Geological History of Australia, Tasmania and 

 New Zealand from Archaean Time down to the commencement of 

 the Permo-Carboniferous Period. Special reference will be made 

 to the folding which the earth's crust has been proved to have 

 undergone in that portion of the Australasian Region within the 

 above-mentioned limits of geological time. 



* Records of the Geological Survey of New South Wales, Vol. iii. Part iv. 

 pp. 132-153. 



+ Rid. pp. 154-194. 



