The Nature of Invention
How it is Governed by Evolution
Volume 71, Issue 1847supp
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Features
Mesothorium and Radiothorium
Aeroplane Under-carriaǵes
Some Recent Designs
Mechanical Handlinǵ of Materials
The Progress of Recent Years
A New Gas Machine
Use of Gasoline for Production of Gas for Light, Power and Heat
Moving Houses in Germany
An American Idea Transplanted
Giant Gas Enǵines and Blowinǵ Tubs
Heatinǵ and Ventilatinǵ the Yarrow Home
A Series of Interesting Experiments
The Bee as an Enǵineer
The Structure of a Piece of Honeycomb
Diesel Marine Enǵines—II
A Resume of Recent Performances