Table of contents
Recently Patented Inventions
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Pipe Galleries for the Rapid Transit Subway - p322
doi:10.1038/scientificamerican05251901-322
New Process for Plaster of Paris - pp322 - 323
doi:10.1038/scientificamerican05251901-322d
Wild Animals in Winter - p323
Charles Frederick Holder
doi:10.1038/scientificamerican05251901-323
The Popoff-Ducretet Apparatus for Wireless Telegraphy - p324
doi:10.1038/scientificamerican05251901-324a
Government Tests of Maximite at Sandy Hook - pp325 - 326
doi:10.1038/scientificamerican05251901-325
Some Features of the New York Rapid Transit Tunnel - p327
doi:10.1038/scientificamerican05251901-327
The Amateur in Photomicrography - p329
W. F. Watson
doi:10.1038/scientificamerican05251901-329
An Interesting Insect—Thyridopteryx EphemerÆFormis - p330
N. Hudson Moore
doi:10.1038/scientificamerican05251901-330