Scientific American Magazine Vol 64 Issue 13

Scientific American Magazine

Volume 64, Issue 13

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Features

The Boynton Unicycle Railroad

The Celebration of the Beginning of the Second Century of the American Patent System

Position of the Planets in April

Oriental Method of Vaulting

A Clasp for Connecting Timbers

An Improved Cable Railway Crossing

A Spring Device for Singletrees

A New Park for New York

A Fish Habitation

Wm. P. Seal

Experiment in Specific Gravity of Fluids

Scientific American Building Edition- March 28, 1891

Advertisements

Experimental Science- March 28, 1891

Geo. M. Hopkins

The Scientific American Publications for 1891

The Scientific American Established 1846- March 28, 1891

Departments

Business and Personal- March 28, 1891

Notes & Queries- March 28, 1891

Recently Patented Inventions- March 28, 1891

New Books and Publications- March 28, 1891

Index of Inventions- March 28, 1891

To Inventors- March 28, 1891

List of Books