Oorresponbence. Phosphor-Bronze Wire for Mechanical Telephones. The Harlequin Snake. To Keep off Mosquitoes. Iron Shafts. Detecting Minute Quantities of Iron in Minerals. American Machinery Abroad. Care or Fire Extinguishing Apparatus. Holy Land Railway. The Effects of Carbonic Oxide upon the Blood., scientific american, 1889-06-15

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Oorresponbence. Phosphor-Bronze Wire for Mechanical Telephones. The Harlequin Snake. To Keep off Mosquitoes. Iron Shafts. Detecting Minute Quantities of Iron in Minerals. American Machinery Abroad. Care or Fire Extinguishing Apparatus. Holy Land Railway. The Effects of Carbonic Oxide upon the Blood., scientific american, 1889-06-15

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