IV 
The N.Z. Journal of Science and Technology. 
No. 3 . — May. 
Editorial: Mr. Evan Parry and a Library of Science and Technology 
The Occurrence of Haemogregarina in New Zealand Lizards. By A. B. Dore 
Weather Forecasting in New Zealand. By B. V. Pemberton 
The Limestone of Canterbury considered as a Possible Source of Phosphate. 
By L. J. Wild and R. Speight 
Astronomical Notes 
Heating Houses by Electricity 
^-"Graphite in New Zealand. By P. G. Morgan 
The Technical Analysis of Auckland Clays., By A. B. Jameson 
University and Scientific News 
Reviews and Abstracts 
Page 
161 
163 
165 
180 
193 
197 
198 
209 
220 
223 
Nos. 4 and 5. — July. 
The New Zealand Institute Science Congress, Christchurch, 1919 . . . . 225 
Inception of the Congress . . . . . . . . . . . . 227 
Officers of the Congress . . .. . . . . . . . . . . 230 
Biographical Notice (Leonard Cockayne, Ph.D., F.R.S., President of the New 
Zealand Institute) . . . . . . . . . . . . 231 
Programme of the Congress . . .. . . . . . . . . 234 
Opening Ceremony . . . . . . . . . . . . . . 238 
Evening Lectures . . . . . . . . . . . . . . 253 
Papers, Abstracts, and Titles . . . . . . . . . . .. 256 
(The following papers appear in full.) 
The Need of a Comprehensive Dominion Herbarium. By D. Petrie . . 260 
Polymorphism in the Common New Zealand Limpet, Cellana radians (Gmelin). 
By J. A. Thomson . . . . . . . . . . . . . . 264 
The Status of Entomology in the Economy of the Dominion. By David 
Miller . . . . . . . . . . . . . . . . 269 
On the Seedling Form of the Coral-shrub (Helichrysum coralloides (Hook. f.) 
Benth. & Hook. f.). By L. Cockayne . . . . . . . . 274 
Geography : Some Educational Aspects of the Subject. By E. K. Lomas . . 282 
The Organization and Functions of a State Geological Survey. By P. G. 
Morgan . . . . . . . . . . . . . . . . 289 
The North-west Winds of Canterbury. By H. F. Skey . . . . . . 300 
The Porosity of Porcelain, with Special Reference to High-pressure Insulators 
for Electric Transmission-lines. By C. C. Farr . . . . . . 302 
Interference of Power Circuits with Telephone Circuits. By E. Parry . . 308 
The Effect of Low Power-factor from the Standpoint of Electric-power-station 
Operators. By E. E. Stark . . . . . . . . 314 
Photographs of the Solar Corona. By C. E. Adams .. . . . . 317 
The Natural Laws of Poetry. By J. C. Andersen .. . . . . 320 
Some Proposals with regard to Natural Afforestation in a New Zealand Mountain 
Area. By W. G. Morrison . . . . . . „ . . . . 339 
Resolutions passed by the Congress . . , , ., ,, , , 351 
