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The Schiseophone

How to Hammer Circular Saws

Celluloid as a Drawing and Printing Material

By Colonel J. Waterhouse

A Table for Drawing Ellipses by Arcs of Circles

150 Ton Ice Making Plant—Linde System

Direct Acting Hydraulic Pumping Engine

A New Form of Electric Chronograph

By Frederick J. Smith

Magnetizing Iron with the Alternating Current

A Remarkable Flash of Lightning

By W. Kohlrausch

Photo-Electric Impulsion Cells

Sinking of the Quetta


By James F. Babcock

Optical Telegraphy

The Warriors of British New Guinea

By Lieut B. Baden-Powell

Mushroom Culture

Goldie's Birthwort

Aristolochia Goldieana

Experiments on the Preparation of Boiled Linseed Oil

By Frank H. Thorp

Detective Photography

By J. C. Hannyngton


Useful Engineering Books

Building Plans and Specifications


  • The Medicinal uses of Leaves

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July 05, 1890

Music's Mysterious Power

Music's Mysterious Power

Emotional. Cognitive. Therapeutic.