Improved Attachment to Mowing and Heaping Machines. Parasites on Insects and other Animals. Polygons. PATENT TELESCOPIC SPEAKING TRUMPET. MARTIN'S PATE? SAFETY SWING. A FLYING PARACHUTE. ANOTHER OPTICAL ILLUSION. KINTNER'S PATENT BOX FOR HARVESTER PITMANS., scientific american, 1868-05-09
Improved Attachment to Mowing and Heaping Machines. Parasites on Insects and other Animals. Polygons. PATENT TELESCOPIC SPEAKING TRUMPET. MARTIN'S PATE? SAFETY SWING. A FLYING PARACHUTE. ANOTHER OPTICAL ILLUSION. KINTNER'S PATENT BOX FOR HARVESTER PITMANS., scientific american, 1868-05-09
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