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Space & Physics
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Upon the Production of Sound by Radiant Energy
By Alexander Graham Bell
Gray's Harmonic Telegraph System
The Gower-Bell Telephone
Molecular Electro-Magnetic Induction
The Denver and Rio Grande Railway
By F. Guthrie and C. V. Boys
The Beef Juice Furor
Prof. Gamgee's New Motor—The Ammonia Engine
The Gamgee Zeromotor
Celerity of the New York Fire Department
Rice as a Brewing Material
Scarlet for Felts
Machines for Repairing Locomotives
Stray Notes on Gelatine Plates
By E. Brightman
By Robert H. Cowdrey
On the Removal of Aqueous Vapor from the Atmosphere
By J. J. Coleman
Action of Bacteria on Gases
The Chemistry of a Lump of Clay
A New Continuous Ammonia Process
Organic Carbon and Nitrogen in Water
A Simple Rapid Filtering Apparatus
By T. Frederick Hardwich
Spectrum Analysis as Applied to the Solar System
By Dr. Wm. Huggins, Esq., D. C. L., LL. D . , F. R. S.
Prevention of Diphtheria
By Edwin R. Maxson
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