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Scientific American Magazine Vol 78 Issue 16

Scientific American Magazine

Volume 78, Issue 16

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Features

The Sandy Hook Mortar Batteries

New Bills for the Regulation of Print and Label Registration

American Supremacy in the Iron Trade

The Navies of the World

Ptomaine Poisoning

Jubilee Anniversary of the American Science Association

Horace C. Hovey

A Locomotive and its Equivalent in Raw Materials

An Improved Car Coupling

A Dredge Ejector

The New Steel Arch at Niagara

An Automatically Closing Umbrella

The Key of the Gulf--The Tortugas Islands

C. F. Holder

Pueblo Arts and Industries.–II

Cosmos Mindeleff

Leonardo Da Vinci's High Angle Mortar

Departments

Notes and Queries - April 16, 1898

Business and Personal - April 16, 1898

New Books, Etc. - April 16, 1898

Recently Patented Inventions - April 16, 1898

Index of Inventions - April 16, 1898