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Features

Process and Apparatus for Producing Hydrogen Gas

By Cyprien Marie Tessi*amp*eacute; Du Motay

Linseed Oil and Electrified Oxygen

Determination of Glycerin in Wines

By M. Raynaud

Detection of Minute Quantities of Mercury

Artificial Wines

Theory in Regard to Earthquakes

The Chinese in California

Metallic Varnish

Fishing Boats at the Berlin International Fisheries Exhibition

Man on the American Continent

Coffee Production of the World

The Discomforts of Summer Railroad Travel

Measurement of High Pressures

Electrical Heat and Power

Deprez's New Galvanometer

An Electric Vacuum Shunt

Velocity of Projectiles in Guns

Progress of American Telegraphic Engineering

The Royal Albert Dock

Design for a Gate

American Coast and River Navigation

The Anthracite Coal Fields of Pennsylvania and their Exhaustion

New Use of Nickel

Discoveries of Minerals in Western North Carolina

By John T. Humphreys

A Viking's Ship

New Observations on the Habits of Ants

Excavations at the Southeast End of the Forum, Rome

Relics of an Ancient Wreck

The Archæopteryx

Newly Discovered Nervous Energy

The Truncated Armadillo

The Mechanical Action of Lightning

The National Medical Library

Franklin's Place in Science

The Zodiacal Light

Ensilage

By O. B. Potter

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    August 14, 1880

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