Table of contents


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Departments

Correspondence

Correspondence p53

doi:10.1038/scientificamerican07261884-53


Business and Personal

Business and Personal pp57 - 58

doi:10.1038/scientificamerican07261884-57d


Books

New Books and Publications p58

doi:10.1038/scientificamerican07261884-58


Notes and Queries

Notes and Queries pp58 - 59

doi:10.1038/scientificamerican07261884-58a


Index

Index of Inventions pp59 - 60

doi:10.1038/scientificamerican07261884-59


Patent Notes

Patents p61

doi:10.1038/scientificamerican07261884-61


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Articles

Casting a Huge Cannon pp47 - 48

doi:10.1038/scientificamerican07261884-47


Congress and the Patent Office p48

doi:10.1038/scientificamerican07261884-48


Driving by Friction pp48 - 49

doi:10.1038/scientificamerican07261884-48a


Variations of Speed p49

doi:10.1038/scientificamerican07261884-49


The Greely Expedition p49

doi:10.1038/scientificamerican07261884-49a


Labels and Trademarks p49

doi:10.1038/scientificamerican07261884-49b


Horse Power p50

doi:10.1038/scientificamerican07261884-50


Improved Oil Cup p50

doi:10.1038/scientificamerican07261884-50a


Compound and Self-Acting Plug Valve for Wash Basins p50

doi:10.1038/scientificamerican07261884-50b


Metallurgic Furnace p51

doi:10.1038/scientificamerican07261884-51


Improved Elevator p51

doi:10.1038/scientificamerican07261884-51a


Bending Machine pp51 - 52

doi:10.1038/scientificamerican07261884-51b


Screw Tap p52

doi:10.1038/scientificamerican07261884-52


Well Bucket p52

doi:10.1038/scientificamerican07261884-52a


Conical Press for Treating Beet Pulp p54

doi:10.1038/scientificamerican07261884-54


A Practical Method of Estimating Distances pp55 - 56

doi:10.1038/scientificamerican07261884-55


Automatic Wave Lubricating Life Buoy p56

doi:10.1038/scientificamerican07261884-56


Engineering Inventions p57

doi:10.1038/scientificamerican07261884-57


Mechanical Inventions p57

doi:10.1038/scientificamerican07261884-57a


Agricultural Inventions p57

doi:10.1038/scientificamerican07261884-57b


Miscellaneous Inventions p57

doi:10.1038/scientificamerican07261884-57c


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