Table of contents
Correspondence
Recently Patented Inventions
Notes and Queries
Books
Index
Patent Notes
Top of page
Top of pageArticles
Completion of the Pennsylvania Double Tunnels - p278
doi:10.1038/scientificamerican10201906-278a
The Status of the Liquid Barretter - pp278 - 279
doi:10.1038/scientificamerican10201906-278c
The Need and the Testing of Pure Drugs - pp280 - 281
Hugo Erichsen
doi:10.1038/scientificamerican10201906-280
A Retrospect of the Vanderbilt Cup Race - pp281 - 282
doi:10.1038/scientificamerican10201906-281
The Canadian Pacific Railway Company's Irrigation Project - pp284 - 285
Kittredge Wheeler
doi:10.1038/scientificamerican10201906-284
An Electric Powderless, Smokeless, Flashless, and Soundless Gun - p286
Obed C. Billman
doi:10.1038/scientificamerican10201906-286
Photographing a Devil Fish—The Chameleon of the Sea - pp286 - 288
Charles Frederick Holder
doi:10.1038/scientificamerican10201906-286a
Apparatus for Mixing Different Grades of Rice - p288
doi:10.1038/scientificamerican10201906-288
Means for Facilitating the Cleansing of Street Catch Basins - p288
doi:10.1038/scientificamerican10201906-288b