Table of contents
May 5, 1860, Volume 2 No 19 (New Series) pp289-304
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Improved Surface Condenser and Heat Reclaimer - p289
doi:10.1038/scientificamerican05051860-289
McEwen and Patterson's Ventilating Shoes - p292
doi:10.1038/scientificamerican05051860-292b
Polytechnic Association of the American Institute - p295
doi:10.1038/scientificamerican05051860-295
Kennedy's Method of Securing Iron Mouth-Pieces to Clay Retorts - p296
doi:10.1038/scientificamerican05051860-296a
The Result of the Water Wheel Experiments in Philadelphia - p297
doi:10.1038/scientificamerican05051860-297b
American Police and Fire Alarm Telegraph - p298
doi:10.1038/scientificamerican05051860-298
