Table of contents
Top of page
Top of pageArticles
Colored Daguerreotypes—Hillotype—Heliochromy - p3
doi:10.1038/scientificamerican09201851-3
New Motive Power and the Spiritual Rappings - p3
doi:10.1038/scientificamerican09201851-3b
Perforation of a leaden Water Cistern by Insects - p3
doi:10.1038/scientificamerican09201851-3d
An Improvement Wanted for Ginning Sea Island Cotton - p5
doi:10.1038/scientificamerican09201851-5c
A New Material for Lighthouses, Sea-Walls, Paving, &C - p6
doi:10.1038/scientificamerican09201851-6
The Floating Bridge across Lake Champlain Completed - p6
doi:10.1038/scientificamerican09201851-6b