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Scientific American Magazine Vol 96 Issue 1

Scientific American Magazine

Volume 96, Issue 1

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Features

Review of the Year 1906

An Interesting Process for Avoiding Sponginess in Heavy Steel Castings

L. Ramakers

Speed Trials of the Battleship "Vermont".

The Manufacture of Steel Pens

L. A. Hawkes

A Church Blown up by Natural Gas.

Wheel-Flange Oiler

A Novel Door Lock

Hand-Operated Shaper

Departments

The Heavens in January

Notes and Queries

Recently Patented Inventions

Index of Inventions

Patents