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A Design for an Electric Launch Motor

By Charles T. Child

A New Gasoline Motor

Electrical and Engineering Work in the Navy during the War

By W. D. Weaver

The Central London Railway

The Longsdon Gas Engine

Damage to Italian Shipping by Galvanic Action

The Tactical Applicability of the Maxim Machine-Gun

By A. V. Boguslawski

Engineering Notes

Selected Formulæ

Miscellaneous Notes

The Saint Gobain Plate Glass Manufactory

Acetylene for Gas Engines

Waste Heat at Sea

The Ives Chromoscope

Improvements in Bronze Casting


The First Elevator

Behavior of Air Under Great Electrical Stress

The Micronesian Venice

Peanuts and Peanut Oil

Bignonia Purpurea

A Short History of Scientific Instruction

The “Secret of the Harem”

Aneroid Barometers

By C. F. Marvin

Ozone and the Phenomena of Phosphorescence

Some Thoughts the Changes on Retarding of Old Age

By Albert Seitz

Ancient Trepanning


The Power of Wood Saws


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    January 14, 1899

    20% Sitewide for President's Day