Table of contents
Top of page
Top of pageArticles
Improvement on the Shanks of Door Knobs - p257
doi:10.1038/scientificamerican05041850-257c
Directions for Preparing Talbotype Paper - p257
doi:10.1038/scientificamerican05041850-257d
Correspondence of the Scientific American - p258
doi:10.1038/scientificamerican05041850-258
Patent Information—Important to Persons Using Patented Machines - p258
doi:10.1038/scientificamerican05041850-258d
To Convert Iron into Steel by Cementation - p259
doi:10.1038/scientificamerican05041850-259d
Abstract of some British Patents Recently Granted - p260
doi:10.1038/scientificamerican05041850-260e
More about the Exibition of the Industry of all Nations - p262
doi:10.1038/scientificamerican05041850-262
History of Propellers and Steam Navigation - p264
doi:10.1038/scientificamerican05041850-264a
