Volume 50, Issue 17
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Features
Separation of Oil from Iron Chips
Progress in Iron Founding
Saving by Co-Operation
A New Fire Escape
Improved Hose Coupling
New Reclining Chair
Binding Post for Electric Conductors
Oil Gas Plant for Ailsa Craig Lighthouse
Musical Wagon
Dr. Le Plongeon's Latest and Most Important Discoveries Among the Ruined Cities of Yucatan
(Continued from page 240.)