OFFICIAL JOURNAL OF THE 
Commonwealth Institute of Science and Industry. 
SEPTEMBER, 1920. No. 9. 
MMM TT 
TABLE OF CONTENTS 
Wi ET a 
PAGE 
Leader RA a we 4 rs ne ra aS yy 513 
Editorial Notes Fs un aa Jee! - Hi +. 517 
A Bird Census, Industrial Co-operation in Australia. 
Bacterial Retting of Flax. Woollen Research Association. 
Electrical Sterilization of Milk. Empire Cotton-growing Committee.--Scheme 
of Organization. 
Light Creosote Oils in Wood Preservation. Insect Parasites—A Successful Investigation 
Science and Industry. Research—-What it is not. 
Sea-Weed for Paper Making. Natural Gas. 
Blind to the Future. Sheep-Fly in Great Britain. 
Germany’s Brown Coal Deposits. Pan-Pacific Conference. 
‘X-Rays. By Professor Kerr Grant a = a te <t 526 
Coal Economy. By Gerald Lightfoot, M A. oe Ke Bet e 539, 
Beneficial versus Injurious Insects (No. II.). By Ewen Mackinnon, B.A., B.Sc. 549 
The Utilization of Leather Waste. By A. Harvey . - The we 060K 
Scientific and Technical Societies i uF ae wy, 564 
Paracel; Mr. J. B. Henderson, FPLC. i fot a eT +7 569 
Reviews we > ia 4 a wee ay Ps 570 
The Institute of Science and Industry Act a ve oy see, eB 
P; ° 1 PER Within Commonwealth, 10s. per Ann., Post Free. 5 
YIC@ LS. cory. Outside Commonwealth, 11s. Gd. per Ann., Post Free. 
0.15388,—1 
