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Scientific American Magazine Vol 91 Issue 13

Scientific American Magazine

Volume 91, Issue 13

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Features

Proposed Amendment Permitting the Extension of the Terms of Patents

The Forlorn Hope of the Baltic Fleet

A Grave Responsibility

Trunk Lines and Trolleys in the East

The New York Sessions of the Eighth International Geographic Congress

Science Notes

The Manufacture of Wall Paper

W. Frank M'Clure

A Reasoning Horse

When was the Photograph Taken?

William F. Rigge

Completing the New Croton Dam

The "Lebaudy II"

Emile Guarrini

Native Dwellings at the St. Louis Exposition

By the St. Louis Correspondent of the Scientific American

Striking Examples of Insect Mimicry

O. Fulda

Business and Personal Wants

Departments

Notes and Queries - September 24, 1904

New Books, Etc. - September 24, 1904

Recently Patented Inventions - September 24, 1904

Index of Inventions - September 24, 1904

Patents - September 24, 1904