Table of contents
Recently Patented Inventions
Business and Personal
Books
Notes and Queries
Index
Patent Notes
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Top of pageArticles
The New York Signal Service Station - pp271 - 272
doi:10.1038/scientificamerican11021889-271
The International Marine Conference - pp272 - 273
doi:10.1038/scientificamerican11021889-272
Mr. Hopkins' New Book, “Experimental Science” - p273
doi:10.1038/scientificamerican11021889-273
An Improved Electrical Door Alarm - pp275 - 276
doi:10.1038/scientificamerican11021889-275d
