Table of contents
September 16, 1868, Volume 19 No 12 pp177-191
About the coverBusiness and Personal
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Improved Portable Stump Extractor, The Chicago River Tunnel - p177
doi:10.1038/scientificamerican09161868-177
Woodside's Patent Self-Setting Animal Trap - p177
doi:10.1038/scientificamerican09161868-177a
Manufacture of Cast Steel and Homonogeneous Iron - p178
doi:10.1038/scientificamerican09161868-178
Special Correspondence of the Scientific American-Affairs at the Patent Office - p180
doi:10.1038/scientificamerican09161868-180
The Bessemer Process how its Early Difficulties were Overcome - pp181 - 182
doi:10.1038/scientificamerican09161868-181a
Burying Alive-Experiments with Vester's Patent Burial Case - p182
doi:10.1038/scientificamerican09161868-182
Manufacturing, Mining, and Railroad Items - p182
doi:10.1038/scientificamerican09161868-182a
Recent American and Foreign Patents - pp182 - 183
doi:10.1038/scientificamerican09161868-182b
Stimson's Patent Butt Hinge Door Spring - p184
doi:10.1038/scientificamerican09161868-184
Official Report of Patent and Claims - pp186 - 191
doi:10.1038/scientificamerican09161868-186a