Scientific American Magazine Vol 95 Issue 16

Scientific American Magazine

Volume 95, Issue 16

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Features

The Status of the Liquid Barretter

Completion of the Pennsylvania Double Tunnels

A 21½-Knot Battleship

Panama Canal to be Built by Contract

Something about Cereal Breakfast Foods

The Need and the Testing of Pure Drugs

Hugo Erichsen

A Retrospect of the Vanderbilt Cup Race

The Canadian Pacific Railway Company's Irrigation Project

Kittredge Wheeler

An Electric Powderless, Smokeless, Flashless, and Soundless Gun

Obed C. Billman

Photographing a Devil Fish--The Chameleon of the Sea

Charles Frederick Holder

Means for Facilitating the Cleansing of Street Catch Basins

Apparatus for Mixing Different Grades of Rice

Sound Deflector for Pianos

A New Method of Propelling a Ship

Business and Personal Wants

Departments

Science Notes

Correspondence

Recently Patented Inventions

New Books, Etc.

Notes and Queries

Index of Inventions

Patents