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Recently Patented Inventions
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Projecting Moving Pictures in the Light - p132
Jacques Boyer
doi:10.1038/scientificamerican02131909-132
The Opposition of Mars in 1909 - p134
Frederic R. Honey
doi:10.1038/scientificamerican02131909-134
The Practical Side of Aerial Locomotion - p135
doi:10.1038/scientificamerican02131909-135a
Comparison of Wright and Voisin Aeroplanes - p135
doi:10.1038/scientificamerican02131909-135b
The Aurora Borealis and Morehouse's Comet - p135
doi:10.1038/scientificamerican02131909-135d
Road Building by the United States in Cuba - pp136 - 138
William Atherton Du Puy
doi:10.1038/scientificamerican02131909-136a
Photographing Animals under Water - pp138 - 139
Jacob Reighard
doi:10.1038/scientificamerican02131909-138
A $250 Prize for a Wet-Grain Conveying System - p140
doi:10.1038/scientificamerican02131909-140