SA Supplements Vol 2 Issue 41supp

SA Supplements

Volume 2, Issue 41supp

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Features

International Exhibition of 1876

Connery'S Concave Calking

The International Exhibition of 1876

The Russian Artillery Exhibit —New ' Ield-Gun Carriage

Exhibition Notes

Interesting Minekalogical and Arrchleological Displays

Ship Canal between the Atlantic and Pacific

Tank Locomotive at the Exhibition

Rushes

Improvement in Canal Banks

W. Rodney

Peyer's Steam-Trap

New Steam Condenser without Air-Pump

New Office Water-Gauge

Lessons in Mechanical Drawing

C. W. MacCord

The Seismagraph

Brown's Audible Railway Signals

How to make Steam and Water Joints

Joshua Rose

Direct-Acting Compound Steam Pumping Engine

Diatoms

Prof. Huxley in America

The Theory of Evolution

The Course of Certain Brain Fibres

Tin-Foil for the Teeth

Sublimed Salicylic Acid

Health of Dentists

The Mortuary Record of the Mutual Life Insurance Company of New York

Observations of the Planet Saturn

L. Trouvelot

Jet Mining and Working

Trade and Manufacture in the United States

Thurston's Autographic Torsion Machine, and Experiments

Corals from Peru, Nearly Three Thousand Feet above the Sea-Level

Change of Volume of Electric Conductors

The Lowe Gas Process at the PhiladelPhia Gas Works

Acoustic Attractions

The Gramme Electric, Machine

To the Editor of the Scientific American