Table of contents
July 31, 1869, Volume 21 No 5 pp65-78
About the coverBusiness and Personal
Top of page
Top of pageArticles
Improved Machine for Drilling Rocks, Improvement in Car Trucks, and more - pp65 - 66
doi:10.1038/scientificamerican07311869-65
On the Coal-Fields of the North Pacific Coast - p66
doi:10.1038/scientificamerican07311869-66
Wood Engraving—Improvements in the Art - pp67 - 68
doi:10.1038/scientificamerican07311869-67
Manufacture of Iron and Lead Pipes - pp74 - 75
doi:10.1038/scientificamerican07311869-74b
