Table of contents
January 22, 1870, Volume 22 No 4 pp55-68
About the coverBooks
Business and Personal
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Top of pageArticles
Device for Steaming Rovings, Pressure in Steam Boilers, and more - p55
doi:10.1038/scientificamerican01221870-55
The Reptiles at the Zoological Gardens - pp56 - 57
doi:10.1038/scientificamerican01221870-56a
Improved Packing for the Pistons of Steam Engines - p59
doi:10.1038/scientificamerican01221870-59
On the Nature of the Interplanetary Medium - p61
Vander Weyde, M. D.
doi:10.1038/scientificamerican01221870-61
Manufacture of the Points of Needles and Pins by Electricity - pp61 - 62
C. Wideumann
doi:10.1038/scientificamerican01221870-61a
Progress in Mechanical and Engineering Science and Invention in 1869 - p63
doi:10.1038/scientificamerican01221870-63
The Careless Use of Lucifer Matches - pp63 - 64
doi:10.1038/scientificamerican01221870-63b
On Cotton Seed and Cotton Seed Oil - p64
C. Widemann, Chemist
doi:10.1038/scientificamerican01221870-64b
United States Circuit Court—Southern District before Judge Blatchf Rd - p66
doi:10.1038/scientificamerican01221870-66
Recent American and Foreign Patents - pp66 - 67
doi:10.1038/scientificamerican01221870-66d
