THE NEW ZEALAND 
JOURNAL OF SCIENCE 
AND 
TECHNOLOGY. 
CONTENTS. 
EDITORIAL: Page 
The Cawthron Institute . . .. . . .. .. .. 65 
ARTICLES:— .1 
M. A. ELIOTT. Position and Prospects of the Frozemmeat Trade .. 67 
L. J. WILD and N. P. NEAL. The Calcium=carbonate‘ Content of some Soils 
from Canterbury and Southland .. .. .. .. 70 
C. B. SEALY. Some Notes on the Engineering Survey of the Proposed 
Arapuni Dam Site .. .. . . .. .. 72 
J. HENDERSON. A Mineral new to New Zealand—Pilolite .. .. 79 
J. C. ANDERSEN. Maori String Games .. .. .. .. 8L 
R. SPEIGHT. The Geological Features of the Broken River Coal Area .. 93 
R. SPEIGHT. Two New Fossil Localities in Maitai Rocks .. 105 
G. HOGBEN. The Interpretation of a Typical Seismogram .. .. 106 
J. A. HESKETT. Smelting the Titaniferous Ironsands of New Zealand ..' Ill 
ASTRONOMICAL NOTES :— I 
The Absorption Spectrum of the Novae .. .. .. ..115 
Occupations of a Star by the Planet Jupiter in 1920 .. .. .. 119 
NATURAL-HISTORY NOTES :— 
Metamorphosis of the Fly Exaireta spiniger Schiner. Note on a Habit of the 
Chiton Cryptoconchus porosus (Burrow). The Occurrence of Malaria in 
the Native Ground-lark .. .. .. .. .. ..117 
i 11 
UNIVERSITY AND SCIENTIFIC NEWS :— 
Jubilee of the Otago Institute. Jubiiee of Otago University. Wellington 
Philosophical Society .. .. .. .. .. ..120 
SCIENTIFIC RESEARCH IN NAVAL MATTERS .124 
REVIEWS AND ABSTRACTS :— 
Recent Foraminifera from off New Zealand. Seasonal Variations in the 
~ Composition of the Milk comprising the Wellington City Milk=supp!y. 
Titaniferous Ironsands of New Zealand .. .. .. 125 
NOTICES, 
SUBSCRIPTIONS.—The Journal will be issued six times a year. Subscription, payable 
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should be forwarded by money=order to the Director, Dominion Museum, Wellington. 
Subscribers are requested to furnish their full names and addresses. 
CORRESPONDENCE.—-All communications relative 4o the Journal should be 
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