Table of contents
July 1, 1871, Volume 25 No 1 pp1-12
About the coverBooks
Business and Personal
Top of page
Top of pageArticles
Odiorne's Improvement in Seals for Hydraulic Mains of Gas Works - p6
doi:10.1038/scientificamerican07011871-6b
Extracting Gold from Washings and Poor Ores - p7
doi:10.1038/scientificamerican07011871-7a
Effect of Corporation Employment on Work-Men - p7
doi:10.1038/scientificamerican07011871-7b
The Kelly Patent Extension Case.—Address of Hon. S. S. Fisher.—Competitive Examinations.— Female Applicants for Clerkships in the Patent Office - pp8 - 9
doi:10.1038/scientificamerican07011871-8c
