Table of contents
May 4, 1878, Volume 38 No 18 pp271-286
About the coverBooks
Notes and Queries
Index
Patent Notes
Top of page
Top of pageArticles
Congress and the Patent Office Funds - pp273 - 274
doi:10.1038/scientificamerican05041878-273a
Improved Tool Stocks for Dental Engines - p275
doi:10.1038/scientificamerican05041878-275
The Oil Bearing Sands of Pennsylvania - pp280 - 281
doi:10.1038/scientificamerican05041878-280a