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Features

The Battleship “Maine,” 1886–1898

The Psychology of Invention

By Josiah Royce

Electric Lighting in Rubber Works

The Navy of Spain

The Home Modification of Milk

By William L. Baner

Table of Wind Pressures Adopted by the English Navy

Miscellaneous Notes

Selected Formulæ

Engineering Notes

The Pulpit of Saint Bavon Church

Powerful Machines for Working Structural Iron and Steel

Mimicry in Insects

Animals Underground

A Vegetable Curiosity

Patents

Departments

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    April 23, 1898

    Complex Causes. Alternative Solutions.