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PREFACE. 



The Editor has to acknowledge the assistance received from Mr. W. T. L. 

 Travers, Mr. J. T. Thomson, Captain Hutton, Captain Edwin, and Mr. W. 

 Skey, in the revision of the papers by those gentlemen. 



He has also to acknowledge the assistance received from Mr. R. B. Gore 

 in the preparation of the Meteorological Tables in the Appendix. 



The only change which has been made in the arrangement of the volume 

 since last year is that certain lectures and addresses delivered before the 

 Societies have been printed in the Appendix instead of in the body of the 

 work. 



The Illustrations have as hitherto been lithographed by Mr. J. Buchanan, 

 and the Board have again to thank the Honourable Colonial Secretary for 

 allowing the use of the Government lithographic press. 



Wellington, 2^tJi Api^il, 1873. 



