Preliminary Report to the Inventors' Guild—III
The Guild's Relation to Patent Practise
Volume 75, Issue 1942supp
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Features
The Sketching of Mechanism in Designing
Much Time and Trouble May Be Saved by Judicious Methods
Soil Sterilization
Wanted—Cheap Antiseptics for Use in Horticulture and Agriculture
A Chinese Railway Bridge
Spanning the World' s Most Treacherous River
Peroxides and per-Salts—I
Their Preparation, Properties and Uses in the Arts and Industries
Misapprehension as to the Novelty of the Friedmann Treatment
Wire Drawing
Methods and Machines Used in Manufacture
The Vibration of Rifle Barrels
Marconi Multiple Syntonizer
The Crayfish
One Year's Catch in the United States Valued at $34,000
The World's Naval and Merchant Shipbuilding
Extracts from Lloyd's Official Report for 1912