Contents. 



vu 



V. — Chemistry and Physics. pages 



A"RT. XLII. On the Regeneration of Cyanide Solutions. By 

 Godfrey Doveton, M.A.I.M. E. Communicated 

 by Professor J. Park . . . . . . . . 481-4S3 



XLIII. Studies on the Chemistry of the New Zealand Flora. 



By Professor T. Easterfield and B. C. Aston . . 483-4S6 

 XLIV. Note on the Interaction of Citric and Sulphuric 



Acids. By James Bee . . . . . . 486-487 



XLV. An Experiment bearing on the Wave Theory of Light. 



By J. S. S. Cooper . . . . . . . . 487-4')0 



XLVI. The Physical Properties of Kauri-gum. By J. S. S. 



Cooper .. .. .. .. .. 4'JO- 



XLVII. Note on a supposed Heat-effect. By J. S. S. Cooper. 



492 

 492 



I. — Miscellaneous —conimwed, 



XLVIII. On certain Statistics respecting the Trend of English 



Trade. By Professor H. W. Segar . . . . 493-501 



XLIX. A Note on Drawing for Competitions. By Professor 



H. W. Segar.. .. .. .. .. 501-504 



L. A Comparison of the Age-distribution of the Popula- 

 tions of the Four Chief Provincial Districts of 

 New Zealand. By Professor H. W. Segar . . 504-511 



Annual Report of the New Zealand Institute . . . . 515 



" New Zealand Institute Act, 1903 " .. .. .. xii.-xiv. 



Regulations of the New Zealand Institute under the Act of 1903 xiv.-xvii. 



Report on Colonial Time-ball Observatory . . . . . . 517 



Proceedings — Wellington Philosophical Society . . . 523 



Auckland Institute . . . . . . 529 



Philosophical Institute of Canterbury . . . . 534 



„ Otago Institute . . . . . . . . 538 



Westland Institute . . . . . . . . 543 



„ Hawke's Bav Philosophical In.stitute . . . . 545 



Nelson ' . . . . . . . . . . 546 



LIST OP PLATES AT THE END OF THE VOLUME. 



Plate 



I. Calabash, with Carved Mouthpiece. — Newman 



II. ]\Iouthpiece of Calabash. — Newman 



III. ]\Ioriori Carving, Chatham Islands. — Hamilton 



IV. Veracity of Census Returns. — Segar 

 V. Veracity of Census Returns. — Segar 



VI. Paryphanta fuviosa. — Murdoch 



VII. New Zealand Sipuncitlids . — Benham 



VIII. Himdo antipodum. — Benham . . 



IX. Regalecus parkeri. — Benham . . 



X. Ixodes anatis. — Chilton 



XI. Leaves of Panas simplex. — Cockayne 



XII. Sand Dunes, Enderby Island. — Cockayne 



XIII. Rata Forest, Auckland Islands. — Cockayne 



XIV. Olearia lyallii Forest, Ewing Island. — Cockayne 

 XV. Olearia lyallii Forest, Ewing Island. — Cockayne 



To 



illustrate 



Article 



I. 



I. 



III. 



VI. 



VI. 



XVL 



XX. 



XXI. 



XXIII. 



XXIV. 



XXVI. 



XXVI. 



XXVI. 



XXVI. 



XXVI. 



