Table of contents
August 29, 1874, Volume 31 No 9 pp127-140
About the coverBooks
Business and Personal
Index
Top of page
Top of pageArticles
Proceedings of the American Association for the Advancement of Sciemce - p129
doi:10.1038/scientificamerican08291874-129a
Recent American and Foreign Patents - pp136 - 137
doi:10.1038/scientificamerican08291874-136c