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Features

An Apparatus for Providing a Steady Platform for Guns, Etc., at Sea

Experimenting with a Captive Balloon

Compressed Air for Power Distribution

Modern Steam Yachts

By Fred A. Ballin

Propulsion by Wave Power

Electrical Device for Determining Melting Points

Wood's Magnet Winder

The Electromagnet

By Silvanus P. Thompson

An Electric Headlight

Tanning by Electricity

New Milling Yellow Dye

Organ Blowing by Electric Motors

A New Flexible Tube

By Thomas R. Almond

Improved Cement Tester

Roman Remains at Silchester, England

The Culture and Preparation of Flax

Aid to Astronomical Research

Peter Kieffer

Aristolochia Longecaudata, Masters

Antarctic Exploration

By G. S. Griffiths

The Coal Fields of Alabama

By Henry McCalley

Home Life on an Ostrich Farm

On the Occurrence of Megalonyx Jeffersonii (Harlan) in Central Ohio

By Edward Orton

Locomotion in Water Studied by Photography

Hydrazoic Acid—A New Gas

A Lecture Experiment

By Saville Shaw

Building Plans and Specifications

Fluorine and Carbon

On the Action of Light on Cholorine Water

Patents

Useful Engineering Books

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    January 10, 1891

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