Table of contents
July 27, 1861, Volume 5 No 4 (New Series) pp49-64
About the coverNotes and Queries
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Telegraph Cables—Best Insulating Material—Next Ocean Telegraph - p58
doi:10.1038/scientificamerican07271861-58
Instructions about European Patents with a Synopsis of the Patent Laws of the Various Countries - p62
doi:10.1038/scientificamerican07271861-62b