Table of contents
Recently Patented Inventions
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The Growth of our Street Railway Systems - p306
doi:10.1038/scientificamerican04161904-306a
Action of Light upon the Formation of Accumulators - p306
doi:10.1038/scientificamerican04161904-306c
Military Aspects of the Trans-Siberian Railway - pp308 - 310
doi:10.1038/scientificamerican04161904-308
The Cylindrical Movable Dams at Schweinfurt, Germany - p312
A. Steens
doi:10.1038/scientificamerican04161904-312
A Portable Oxygen-Inhaling Apparatus - p314
Emile Guarini
doi:10.1038/scientificamerican04161904-314
A Peculiar Blaze in the New York Subway - p315
doi:10.1038/scientificamerican04161904-315