Table of contents


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Departments

Recently Patented Inventions

Recently Patented Inventions p202

doi:10.1038/scientificamerican03281891-202


Business and Personal

Business and personal p202

doi:10.1038/scientificamerican03281891-202c


Index

Index of Inventions pp203 - 204

doi:10.1038/scientificamerican03281891-203a


Patent Notes

Patents p205

doi:10.1038/scientificamerican03281891-205


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Articles

The Boynton Unicycle Railroad pp191 - 192

doi:10.1038/scientificamerican03281891-191


The Celebration of the Beginning of the Second Century of the American Patent System pp192 - 193

doi:10.1038/scientificamerican03281891-192


Position of the Planets in April pp193 - 194

doi:10.1038/scientificamerican03281891-193


Oriental Method of Vaulting p194

doi:10.1038/scientificamerican03281891-194


An Improved Cable Railway Crossing p195

doi:10.1038/scientificamerican03281891-195


A Spring Device for Singletrees p195

doi:10.1038/scientificamerican03281891-195a


A Clasp for Connecting Timbers pp195 - 197

doi:10.1038/scientificamerican03281891-195b


A New Park for New York p198

doi:10.1038/scientificamerican03281891-198


A Fish Habitation pp199 - 201

Wm. P. Seal, By

doi:10.1038/scientificamerican03281891-199


Experiment in Specific Gravity of Fluids p201

doi:10.1038/scientificamerican03281891-201


New Books and Publications p202

doi:10.1038/scientificamerican03281891-202a


Scientific American Building Edition p202

doi:10.1038/scientificamerican03281891-202b


Notes & Queries pp202 - 203

doi:10.1038/scientificamerican03281891-202d


To Inventors p203

doi:10.1038/scientificamerican03281891-203


Advertisements p204

doi:10.1038/scientificamerican03281891-204


List of Books p204

doi:10.1038/scientificamerican03281891-204a


Experimental Science p205

Geo. M. Hopkins, By

doi:10.1038/scientificamerican03281891-205a


The Scientific American Publications for 1891 p205

doi:10.1038/scientificamerican03281891-205b


The Scientific American Established I846 p206

doi:10.1038/scientificamerican03281891-206


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