Scientific American Magazine Vol 7 Issue 12

Scientific American Magazine

Volume 7, Issue 12

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Features

Combined Sawing, Boring, Molding and Planing Machine

Report on Testing Iron Armor Plates

Miscellaneous Summary

Notes on Naval and Military Affairs

The Color Products of Coal--Mauve and Magenta

Proportions of Locomotives

Valuable Receipts

Meucci's Kerosene Lamp

Paines's Spray Superheated Steam Engine

Petroleum is not Coal Oil

Salts of Silver, Photography and Indelible Ink

A Great Law of Nature

The London Exhibition--Wrought Iron

The North is Invaded

The Frigate Ironsides

Patent Claims

Recent American Inventions

To Our Readers

Blythe's Ventilating Cap

Smiths' Mode of Setting Tombstones

Departments

Correspondence

Notes and Queries