SA Supplements Vol 68 Issue 1757supp

SA Supplements

Volume 68, Issue 1757supp

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Features

A New Kind of Ferry Boat

Railway Car Ferries Between Germany and Sweden

F. C. Coleman

The Future of the Submarine

Some Practical Difficulties

An Ounce of Rust Prevention

A Successful Marine Producer-Gas Plant

A Brief Account of the “Marenging

Methods of Wood Preservation

Imitation Arms and Armor.—II

How to Make them at Home

A. Roze

Old and New Rome

Some Recent Archeological Discoveries

The Electrical Properties of Flames

A Summary of Prof. Wilson's Studies

Medical Fees in Olden Times

Ants and Bees as Pets

A Curious Hobby for Amateurs

Percy Collins

Artificial Cyclopism

Studies of Electricity and Matter

A Resume Of Recent Investigation

J. J. Thomson

The Automatic Telephone

The Girl-Less Central Office

Snowden B. Redfield

Pickering's Lunar and Solar Photometric Researches

Hocus Pocus Mutterings

Some Old Conjurers' Formulae and Magic Utterances

Arthur Watson

Trade Notes and Formulæ

Engineering Notes

Electrical Notes