Table of contents
April 25, 1874, Volume 30 No 17 pp255-268
About the coverBusiness and Personal
Index
Patent Notes
Top of page
Top of pageArticles
Improved Portable Elevator and Conveyer - p255
doi:10.1038/scientificamerican04251874-255
The Astronomical Conditions of Life - pp256 - 257
doi:10.1038/scientificamerican04251874-256b
The Separation of Tar and the Manufacture of Sulphate of Ammonia from Waste Products - pp258 - 260
doi:10.1038/scientificamerican04251874-258
Recent American and Foreign patents - pp264 - 265
doi:10.1038/scientificamerican04251874-264b
