Table of contents


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Departments

Correspondence

Correspondence p133

doi:10.1038/scientificamerican03031883-133


Inventions

Recent Inventions p137

doi:10.1038/scientificamerican03031883-137


Business and Personal

Business and Personal p138

doi:10.1038/scientificamerican03031883-138d


Notes and Queries

Notes and Queries p139

doi:10.1038/scientificamerican03031883-139


Index

Index of Inventions pp139 - 140

doi:10.1038/scientificamerican03031883-139a


Patent Notes

Patents p140

doi:10.1038/scientificamerican03031883-140


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Articles

Monster Dredge for the Panama Canal p127

doi:10.1038/scientificamerican03031883-127


Curiosities of the Railway Census p128

doi:10.1038/scientificamerican03031883-128


The Wringer Before Congress p128

doi:10.1038/scientificamerican03031883-128a


Florida Exploration p128

doi:10.1038/scientificamerican03031883-128b


Aspects of the Planets for March p129

doi:10.1038/scientificamerican03031883-129


Resharpening Files p129

doi:10.1038/scientificamerican03031883-129a


Improved Windmill p130

doi:10.1038/scientificamerican03031883-130


Fireproof Floor and Ceiling pp130 - 131

doi:10.1038/scientificamerican03031883-130a


Improvement in Cutter Heads pp131 - 132

doi:10.1038/scientificamerican03031883-131


Improved Method of Raising Cream from Milk p132

doi:10.1038/scientificamerican03031883-132


Upright Drill Press Used as a Boring Lathe p134

doi:10.1038/scientificamerican03031883-134


Underground Electric Wires p134

doi:10.1038/scientificamerican03031883-134a


Improved Car Truck pp135 - 136

doi:10.1038/scientificamerican03031883-135


The Reis-Thompson Telephone Receiver p136

doi:10.1038/scientificamerican03031883-136


Engineering Inventions p138

doi:10.1038/scientificamerican03031883-138


Mechanical Inventions p138

doi:10.1038/scientificamerican03031883-138a


Agricultural Inventions p138

doi:10.1038/scientificamerican03031883-138b


Miscellaneous Inventions p138

doi:10.1038/scientificamerican03031883-138c


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