Guncotton and its Manufacture
An Account of Modern Methods
Features
Tidal Power
Some Old and New Tidal Motors
The Application of Nobili's Rings to Color Photography
Transmission of Power by Ropes
Human Odors
Wild Animals in Captivity
The Zoological Gardens of New York
A Novel Electric Locomotive
A Side-Rod Electric Engine
The Astronomical Clock at Lyons
A Wonderful Timepiece
The Indestructibility of Matter
Some Views on the Conservation of Mass
The Life of a Comet
Aerial Flight
A Summary of F. W. Lanchester's Views
An Apparatus for Studying Friction
A Description of the Derihon Apparatus
The Making of Handwriting
Is Handwriting Inherited?
Radium in the Earth and its Effect
Radio-Active Deposits and the Instability of the Crust
