Table of contents
February 9, 1861, Volume 4 No 6 (New Series) pp81-96
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Improved Arastrar or Quartz Crusher and Pulverizer, War Terms, and more - pp81 - 83
doi:10.1038/scientificamerican02091861-81
Electricity and Some of its Practical Applications - p84
doi:10.1038/scientificamerican02091861-84
The Polytechnic Association of the American Institute - pp91 - 92
doi:10.1038/scientificamerican02091861-91
