Table of contents
Recently Patented Inventions
Business and Personal
Notes and Queries
Index
Patent Notes
Top of page
Top of pageArticles
An Air Purifier for Sleeping Apartments, Sick Rooms, Etc - p322
doi:10.1038/scientificamerican11231889-322a
An Improved Locomotive Ash Pan Cleaner - p322
doi:10.1038/scientificamerican11231889-322c
The Congress of the Three Americas - pp324 - 326
doi:10.1038/scientificamerican11231889-324
