CONTENTS. 
VOLUME I I I, 1 920-21. 
No. 1 .—February. 
Pago 
Hate of Growth of Trees in Relation to Forestry : A Criticism of Mr. E. Maxwell’s 
Paper. By Sir I). E. Hutchins . . . . . . . . . . 1 
A Science Institute for Wellington. By Sir Robert Stout . . .. .. 7 
Notes on some Avian Haematozoa observed in New Zealand. By A. B. Dore 10 
Parasitism in New Zealand Spiders. By W. W. Smith . . . . . . 13 
Design of Laminated Springs. By S. H. Jenkinson . . . . . . 16 
Deposition of Ice by a Glacier Spring. By J. Hardcastle . . . . . . 26 
The Tertiary Beds of Central Otago. By P. G. Morgan . . .. . . 29 
The Origin of New Stars : The Dynamics of Celestial Encounters. By A. C. 
Gifford . . . . .. .. . . .. . . 33 
Natural-history Notes . . . . . . . . . . . . 53 
University and Scientific News . . . . .. . . . . 58 
Reviews and Abstracts .. . . .. . . . . . . 60 
No. 2 .—April. 
Editorial: The Cawthron Institute . . . . . . .. 65 
Position and Prospects of the Frozen-meat Trade. By M, A. Eliott . . . . 67 
The Calcium-carbonate Content of some Soils from Canterbury and Southland. 
By L. J. Wild and N. P. Neal . . . . . . . . 70 
Some Notes on the Engineering Survey of the Proposed Arapuni Dam Site. 
By C. B. Sealy . . . . . . . . . . . . 72 
A Mineral new to New Zealand—Pi loll te. By J. Henderson . . 79 
Maori String Games. By J. C. Andersen . . . . . . . . . . 81 
The Geological Features of the Broken River Coal Area. By R. Speight . . 93 
Two New Fossil Localities in Maitai Rocks. By R. Speight . . . . 105 
The Interpretation of a Typical Seismogram. By G. Hogben .. . . 106 
Smelting the Titaniferous Ironsands of New Zealand. By J. A. Heskett . . Ill 
Astronomical Notes .. .. .. .. .. ». ..115 
Natural-history Notes .. .. .. .. .. .. ..117 
University and Scientific News . . . . . . . . .. 120 
Scientific Research in Naval Matters . . . . .. . . 124 
Reviews and Abstracts . . . . , . . . . . . . ..125 
