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Aerial Railroad Bridge for Navigable Rivers - p169
doi:10.1038/scientificamerican02141852-169
Direct Railroad between Rochester and Syracuse - p170
doi:10.1038/scientificamerican02141852-170f
Improvement in Securing Lamps in Lanterns - p172
doi:10.1038/scientificamerican02141852-172a
The Counting House Perpetual Calender and Bill Register - p172
doi:10.1038/scientificamerican02141852-172c
Improvement for Increasing the Draught of Furnace Flues - p172
doi:10.1038/scientificamerican02141852-172d
Improvements in the Manufacture of Gas - p172
doi:10.1038/scientificamerican02141852-172f
The Croton Water—Its Action on Lead, &c - p173
doi:10.1038/scientificamerican02141852-173
