Table of contents
December 6, 1873, Volume 29 No 23 pp351-365
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Recent Progress in Electromagnetism - pp351 - 352
doi:10.1038/scientificamerican12061873-351
Scientific and Practical Information - pp353 - 354
doi:10.1038/scientificamerican12061873-353c
The Challenge Reversible Rotary Hoisting Machine - p355
doi:10.1038/scientificamerican12061873-355
The Germ Theory and Its Relations to Hygiene - p357
F. A. P. Barnard, Ll.D.
doi:10.1038/scientificamerican12061873-357
Recent American and Foreign Patents - pp361 - 362
doi:10.1038/scientificamerican12061873-361a