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Space & Physics
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A Day with the "Shamrocks"
By the Yachting Expert of the
Broadway Tunnel Controversy
Prof. Barnard's Observations of the White Spot on Saturn
By Mary Proctor
The Current Supplement
The Ninth International Geological Congress
A New Gold District
Present Status of American Shipbuilding
An Instrument for Describing Mathematical Curves
By F. N. Massa
Waterway Improvement on the Ohio
By William Gilbert Irwin
An Audible and Visible Railway Signal for Grade Crossings, Operated by a High Tension Current
By Emile Guarini
The Secret Cannibal Society of the Kwakiutl
By Walter L. Beasley
An Automatic Device for Replacing Bowling Alley Pins
The Sending of the President's Message around the World
A Novel Amusement Apparatus
An Efficient Low-Priced Typewriter
Correspondence - August 15, 1903
Business and Personal Wants
Recently Patented Inventions - August 15, 1903
Notes and Queries - August 15, 1903
Index of Inventions - August 15, 1903
New Books, Etc. - August 15, 1903
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