Scientific American Magazine Vol 32 Issue 15

Scientific American Magazine

Volume 32, Issue 15

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Features

The Pneumatic Despatch System in the Western Union Telegraph Building, New York

The Industrial Condition of Germany

How Science is Annihilated

Proposed Tunnel under Newark Bay

Up or Down in Rapid Transit?

How a Piece of Coal Burns

A Novel Decoy Fish

A New Stellar Indicator

The Earthquake Indicator

Underground Refrigerator for Butchers

Spectroscopic Quantitative Analysis

Machine for Making Fence Pickets

Improved Hoisting Machine

Astronomical Notes - April 10, 1875

The Storage and Handling of Fluids

Improved Circular Saw Table

Improved Windmill

Strasbourg Cathedral and Its Clock

Recent American and Foreign Patents - April 10, 1875

Decisions of the Courts

Canadian Patents - April 10, 1875

Communications Received - April 10, 1875

Departments

Correspondence - April 10, 1875

Notes and Queries - April 10, 1875

Business and Personal - April 10, 1875

Index of Inventions - April 10, 1875