SA Supplements Vol 69 Issue 1799supp

SA Supplements

Volume 69, Issue 1799supp

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Features

A Sawdust-Compressing Machine

Charlton Lawrence Edholm

Great Masonry Arches

Recent American Locomotives

An English Viewpoint

Winners of the Rand Stope-Drill Competition

Some Principles of Efficiency

Curing a Sick Industry

Harrington Emerson

The Processes in Cotton Spinning II

A Review of an Interesting Industry

Leon A. Hackett

Lord Kelvin

His Work in Telegraphy and Navigation

J. A. Ewing

Lightning

A Summary of Recent Studies

Ellery B. Paine

The Elasticity of Timber

Oil Field Phenomena

The Occurrence and Recovery of Petroleum

A. Beeby Thompson

A New Agricultural Investigation

Isolating Harmful Organic Substances in the Soil

The Death of Prof. Cannizarro

Soured Milk

Its Nature, Preparation, and uses

R. T. Hewlett

The Number of Animal Species

The use of Anesthetics for Plants

Artificial Acceleration of Growth

S. Leonard Bastin

Squibs, Fuses, and Detonators

Hints for the Miner

C. E. Munroe, Clarence Hall

Science Notes

Trade Notes and Formulæ

The Scientific American Supplement Index for Vol. 69