Table of contents
Recently Patented Inventions
Notes and Queries
Index
Patent Notes
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Six Months Electric Operation of the Grand Central Station - pp4 - 5
doi:10.1038/scientificamerican07061907-4b
Original Methods of Toning Developed Photographic Prints - p5
Milton B. Punnett
doi:10.1038/scientificamerican07061907-5
Simple Apparatus for Producing the Manometric Flame - p6
W. W. Mills
doi:10.1038/scientificamerican07061907-6
New Railroad Construction in Canada and the Northwest - pp10 - 11
Day Allen Willey
doi:10.1038/scientificamerican07061907-10
The Economical Surface Mining Operations of Cuba - pp11 - 12
L. B. Ward
doi:10.1038/scientificamerican07061907-11
Santos Dumont's Combined Aeroplane and Airship - pp12 - 13
doi:10.1038/scientificamerican07061907-12a