Table of contents
December 21, 1901, Volume 85 No 25 pp406-419
About the coverRecently Patented Inventions
Index
Books
Notes and Queries
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Top of pageArticles
Pennsylvania Railroad Terminal Station and Tunnel - p406
doi:10.1038/scientificamerican12211901-406
Safety Device for Engines and Condensers - p409
doi:10.1038/scientificamerican12211901-409
Iron Making on the Pacific Coast - pp409 - 410
doi:10.1038/scientificamerican12211901-409a
An Improved Hay Stacker and Builders' Derrick - p410
doi:10.1038/scientificamerican12211901-410
Giant Sand Wheel for the Calumet and Hecla Mining Company - p411
doi:10.1038/scientificamerican12211901-411
Measuring the Heat of the Stars - pp412 - 413
Mary Proctor
doi:10.1038/scientificamerican12211901-412
The Evolution of the Motor Cycle - pp413 - 414
Hrolf Wisby
doi:10.1038/scientificamerican12211901-413