Table of contents
March 19, 1881, Volume 44 No 12 pp175-187
About the coverBusiness and Personal
Notes and Queries
Index
Top of page
Top of pageArticles
The Industrial Condition of Canada - pp176 - 177
doi:10.1038/scientificamerican03191881-176d
New Telephone Transmitter - p182
Geo. M. Hopkins
doi:10.1038/scientificamerican03191881-182a