Be etins weg} SUPLEMBUR ¥,/1966)° {tare 
THE 
TECHNOLOGIST: 
Record of Science, 
PROGRESS, LITERATURE, AND PRACTICAL 
APPLIANCES. 
CONTENTS. 
Rouruven’s Hypravrtic PRopenLer (With Illustrations) .... kOe. 
SALMON CULTURE IN AUSTRALIA ab pe sp ee co SOS 
Norses or ANIMAL LIFE IN CALIFORNIA nee ae jae OO 
Tue Enp oF Opp Fisues. By I. K. Lorn, EZS.. es 63 
On Screntiric Paysicat TRAINING AND RATIONAL GYMNASTICs. 
By M. Kota, Esq. M.D. ... ot eons. 
Toe Way IMPHEE AND SORGHUM WERE INTRODUCED ee 78 
On Recent PRoGRESS IN THE HISTORY OF PROPOSED SuBstt- 
TUTES FOR GuNPOWDER. By Proressor F. A, Ape, F.R.S., 
V.C.P.S., CHEMIST TO THE WAR DEPARTMENT... 80 
AN LNQuiry INTO VEGETABLE FIBRES AVAILABLE - FOR ‘TEXTILE 
Faprics. By H. SHERWOOD aoe is 35 is See 
THE ATMOSPHERIC CHURN ae Ray oe ae a oe 5 pee 
DISINFE€TANTS ... ae a «.s 100 
HARDWICKE’S SCIENCE Gossip FOR Avaust.. pe 2OE 
MIscELLANEOUS.—PERMANENT PHOTOGRAPHS——VARIETIES IN INK 
- —A Law or ComBustion—THEr THAMES SALMON _... ..» 104 
LONDON : 
KENT & CO, PATERNOSTER ROW. 
All Communications and Books for Review to be addressed to the Hdttor, 
care of M°GOWAN AND DaNnKs, 16 Great Windmill Street, W., Haymarket. 
