Table of contents
May 14, 1870, Volume 22 No 20 pp311-324
About the coverBusiness and Personal
Top of page
Top of pageArticles
Improved Portable Engine for Agricultural Use - pp311 - 312
doi:10.1038/scientificamerican05141870-311
Obituary—Zerah Colburn, Engineer, and Leading Writer of Engineering Papers - p315
doi:10.1038/scientificamerican05141870-315
United States District Court—Southren District before Judge Blatchford Patent for Making Veneers - p321
doi:10.1038/scientificamerican05141870-321
Recent American and Foreign Patents - pp321 - 322
doi:10.1038/scientificamerican05141870-321b
