Table of contents
Recently Patented Inventions
Books
Business and Personal
Notes and Queries
Index
Patent Notes
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Pupin's Improvements in Long Distance Telephoning - p338
doi:10.1038/scientificamerican06021894-338
The Seventh Avenue Bridge over the Harlem River, New York City - p340
doi:10.1038/scientificamerican06021894-340b
Notes on the History of the Breech-Loading Gun - p343
doi:10.1038/scientificamerican06021894-343
Photographing a Human Head upon a Table - p344
doi:10.1038/scientificamerican06021894-344
Triple Boiler Locomotive, Belgian State Railway - pp344 - 345
doi:10.1038/scientificamerican06021894-344a
The Orang-Outang in the Leipsic Zoological Garden - pp345 - 346
doi:10.1038/scientificamerican06021894-345
Proposed Tubular Railway under the English Channel - p347
doi:10.1038/scientificamerican06021894-347