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Features

Coquillon's Indicators

Improved Steamer Lines

Torpedo Defence

A Foundry Explosion

Improved Machine Pulley

Reeves' Excavator

New Gas Process

Rotary Superheated Steam Engine

The Rotation of the Earth as a Driving Power

New Narrow-Gauge Locomotive

Safety Gear for Signals

Improved Grain-Dressing Machinery

Central American Timber

Drawing Platinum Wire

The Salt Manufacture of Michigan

By S. S. Garrigues

Printing on Wood

Reporting Speed

Novel Patterns for Sleighs

Designs for Fresco Painting

Lectures on Paralysis and Convulsions as Effects of Organic Disease of the Brain

Delivered at the Bellevue Hospital Medical College, N. Y.,1877

By C. E. Brown-Sequard

Iron and its Constituents in Regard to Pharmaceutic Preparations

By Henry G. Debrunner

Nervousness

The Hygiene of the Hair

On Chronic Malarial Poisoning

A Clinical Lecture Recently Delivered at the University Medical College, New York

By Alfred L. Loomis

Improved Telegraph Insulators

A Bill to Amend the Statutes in Relation to Patents, and for Other Purposes

Lichtenhein vs. Montgomery, 1861

Solutions to Problems

No. 29

By T. M. Brown

Chess Problems

“Miron” and the Clipper Problem Tourneys

Scientific American Chess Record

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