Scientific American Magazine Vol 87 Issue 23

Scientific American Magazine

Volume 87, Issue 23

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Features

The Death of Friedrich Krupp

The Pennsylvania Railroad Tunnel

Test of the Maximum Capacity of the Niagara Falls Tunnel

The Gun in Naval Warfare

Restoration of the Parthenon

An American Parallel to the Tulip Craze in Holland

Irving U. Townsend

Reversible Screw-Propeller

Non-Freezing Hydrant

The Navipendulum Method of Experiment

The New Plant of the Canadian Niagara Falls Company

Orrin E. Dunlap

The Manufacture of Toys and Dolls

The New Monitor "Wyoming"

Guatemala's Earthquakes

Thomas R. Dawley Jr.

An Experimental Mono-Rail Line

Day Allen Willey

Business and Personal Wants

Departments

Science Notes - December 6, 1902

Correspondence - December 6, 1902

Recently Patented Inventions - December 6, 1902

Notes and Queries - December 6, 1902

Index of Inventions - December 6, 1902

Patents - December 6, 1902

New Books, Etc. - December 6, 1902