Volume 68, Issue 1769supp
You are currently logged out. Please sign in to download the issue PDF.
Features
Heating the Farm House
Methods of Obtaining Winter Comforts
Gold Mirrors for Searchlights
A Box with Secret Drawer and Recesses
Inventive Novelties
A Marine Steam Turbine Reducing Gear
Berjonneau System of Telephotography
A new French System
“Bakelite” a New Composition.—II
Its Synthesis Constitution and Uses
The Machines that make Cordage
How Various Fibers are Mechanically Formed Into Rope
The Development of the Gas Engine
A Critique of Recent Designs
Copper-Clad Steel
A Metallurgical Novelty
Plans for Rebuilding the Quebec Bridge
Mechanical Aids to Railroad Building
Modern Railroad Bed Construction and Track Grading By Machinery
Over Switzerland in a Balloon
How it Feels to Look Down on the Alps
Darwin and Biology
The World of Life as Visualized and Interpreted By Darwinism
The Hand and its Cunning
Return of Halley's Comet
An Ephemeris for This Year