Table of contents
Correspondence
Recently Patented Inventions
Business and Personal
Notes and Queries
Index
Patent Notes
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The Park Avenue Improvement in New York - p337
doi:10.1038/scientificamerican12011894-337
Rolled Welsless Chains-Klatte's Process - pp340 - 341
doi:10.1038/scientificamerican12011894-340
The Locks at the Ends of the Canal between the North and Baltic Seas - pp345 - 346
doi:10.1038/scientificamerican12011894-345