SA Supplements

March 1897

Volume 43, Issue 1107supp

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Features

Coal Handling for Large Boiler Plants

Measures the Bridge Strain

An Instrument that Indicates One Pedestrian's Footfall

Electricity from Carbon without Heat

Willard E. Case

Metallurgical Applications of Electric Heating

Boron Bronze

H. N. Warren

Engineering Notes

Miscellaneous Notes

Electrical Notes

How to Retouch, Improve and Treat Negatives, Positives and Photographs

Robert Grimshaw

Selected Formulæ

Briquettes from Culm Heaps

Preparation of Papers for Preserving Goods or Articles Wrapped in Them

Portable Automatic Oxygen Generator

Making Clean Castings

Women Bicycle Racing in London

The Confessions of a Cocainist

Change of Air—The Science of It

Louis Robinson

The Manufacture of Tartaric Acid

A Hygienic View of Wood Paving

Models of the United States

Cosmos Mindeleff