Table of contents
April 9, 1870, Volume 22 No 15 pp231-244
About the coverBusiness and Personal
Top of page
Top of pageArticles
An Interesting Sketch of the Distinguished Aeronaut, John La Mountain - p233
doi:10.1038/scientificamerican04091870-233
Denn's Improved Gridiron and Cake Baker - p234
doi:10.1038/scientificamerican04091870-234b
The Bessemer Process under Pressure - pp235 - 236
doi:10.1038/scientificamerican04091870-235a
Galmann and Ruhe's Improved Joist Protector - p238
doi:10.1038/scientificamerican04091870-238
Recent American and Foreign Patents - pp242 - 243
doi:10.1038/scientificamerican04091870-242c
