Table of contents
April 24, 1875, Volume 32 No 17 pp255-268
About the coverBusiness and Personal
Notes and Queries
Index
Top of page
Top of pageArticles
Important Changes Proposed in the British Patent Laws - p256
doi:10.1038/scientificamerican04241875-256
A New Machine for Removing Snow from Streets - p256
doi:10.1038/scientificamerican04241875-256a
Progress of Rapid Transit in New York - pp256 - 257
doi:10.1038/scientificamerican04241875-256b
Apparatus for Determining the Impermeability of Tissues - p258
doi:10.1038/scientificamerican04241875-258c
The Sun's Position at Different Seasons of the Year - p259
doi:10.1038/scientificamerican04241875-259
