Table of contents
October 5, 1861, Volume 5 No 14 (New Series) pp209-224
About the coverTop of page
Top of pageArticles
The Polytechnic Association of the American Institute - pp211 - 213
doi:10.1038/scientificamerican10051861-211
New Method of Transmitting Simultaneously Two Dispatches on One Wire - pp213 - 216
doi:10.1038/scientificamerican10051861-213
Information as to the Patentable Novelty of Inventions - p217
doi:10.1038/scientificamerican10051861-217
Sir William Armstrong—Is a Patent a Monopoly? - pp217 - 218
doi:10.1038/scientificamerican10051861-217c
English Shipbuilders Still Following Stevens's Floating Battery - pp219 - 220
doi:10.1038/scientificamerican10051861-219a
