Table of contents


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Departments

Correspondence

Correspondence p69

doi:10.1038/scientificamerican02021884-69


Books

New Books and Publications p74

doi:10.1038/scientificamerican02021884-74d


Business and Personal

Business and Personal pp74 - 75

doi:10.1038/scientificamerican02021884-74e


Notes and Queries

Notes and Queries p75

doi:10.1038/scientificamerican02021884-75


Index

Index of Inventions pp75 - 76

doi:10.1038/scientificamerican02021884-75a


Patent Notes

Patents p77

doi:10.1038/scientificamerican02021884-77


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Articles

Improved Crank Shaft Lathe p63

doi:10.1038/scientificamerican02021884-63


The Earthquake Recorder pp63 - 64

doi:10.1038/scientificamerican02021884-63a


Nullification of the Patent Laws p64

doi:10.1038/scientificamerican02021884-64


Another Movement for a Swiss Patent Law pp64 - 65

doi:10.1038/scientificamerican02021884-64a


Boracic Acid; Its Sources p65

doi:10.1038/scientificamerican02021884-65


Proportions for Vessels of Light Draught p65

doi:10.1038/scientificamerican02021884-65a


Care of Patterns p65

doi:10.1038/scientificamerican02021884-65b


Locking Latch p66

doi:10.1038/scientificamerican02021884-66


Automatic Machine for Cutting Paper and Cardboard p66

doi:10.1038/scientificamerican02021884-66a


The Propeller, Bone—a Contribution to Science p67

C. Marion Dodson

doi:10.1038/scientificamerican02021884-67


Combined Knife Brick Box and Grinder p67

doi:10.1038/scientificamerican02021884-67a


Aspects of the Planets for February p68

doi:10.1038/scientificamerican02021884-68


Bee Farming in New South Wales pp70 - 71

doi:10.1038/scientificamerican02021884-70


Electric Jewelry pp71 - 72

doi:10.1038/scientificamerican02021884-71


Scratch Gauge p72

doi:10.1038/scientificamerican02021884-72


Pipe Tongs pp72 - 73

doi:10.1038/scientificamerican02021884-72a


Engineering Inventions p74

doi:10.1038/scientificamerican02021884-74


Mechanical Inventions p74

doi:10.1038/scientificamerican02021884-74a


Agricultural Inventions p74

doi:10.1038/scientificamerican02021884-74b


Miscellaneous Inventions p74

doi:10.1038/scientificamerican02021884-74c


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