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The Russian Imperial Yacht “Standart”

The Battleship “O'Higgins”

An Automatic Train Checker

Sea Power in Our Civil War

A Remarkable Old Crane on the Rhine

The Lambert Water Meter

Diesel's Heat Motor

Aluminum Instead of Stone

The making of Porcelain Insulators

By F. A. C. Perrine

Soluble Glass in House Construction

To make Lace Leather

The Russian Petroleum Industry

Menes no Longer a Myth—His Tomb Found

The Prevention of Nervous Disorders —Pre-Natal Influences

By Alexander L. Hodgdon

Engineering Notes

Miscellaneous Notes

Selected Formulæ

Tests of the Synchronograph on the Telegraph Lines of the British Government

The Role of Cosmic Ether and Solar Heat in the Disintegration and Formation of Matter

By Charles E. De M. Sajous



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