PREFACE. 
Tue Editor has to acknowledge the assistance received from Mr. WEL 
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, 29th April, 1873. 
