Table of contents


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Departments

Correspondence

Correspondence pp51 - 52

doi:10.1038/scientificamerican07261873-51a


Business and Personal

Business and Personal p59

doi:10.1038/scientificamerican07261873-59


Notes and Queries

Notes and Queries p59

doi:10.1038/scientificamerican07261873-59a


Index

Index of Inventions p60

doi:10.1038/scientificamerican07261873-60a


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Articles

The Baltimore Concentric Rotary Engine pp47 - 48

doi:10.1038/scientificamerican07261873-47


Publishers' Notice p48

doi:10.1038/scientificamerican07261873-48


Friction of Water in Pipes pp48 - 49

doi:10.1038/scientificamerican07261873-48a


The Zodiacal Light p49

doi:10.1038/scientificamerican07261873-49


The Greatest Gas Well in the World p49

doi:10.1038/scientificamerican07261873-49a


To Europe by Balloon p49

doi:10.1038/scientificamerican07261873-49b


A New Substitute for Rubber p49

doi:10.1038/scientificamerican07261873-49c


Scientific and Practical Information p49

doi:10.1038/scientificamerican07261873-49d


The Gardner Governor p50

doi:10.1038/scientificamerican07261873-50


Improved Washing Machine p50

doi:10.1038/scientificamerican07261873-50a


The Tunnicliffe Fire Alarm p50

doi:10.1038/scientificamerican07261873-50b


The Isabella Tiger Moth p51

doi:10.1038/scientificamerican07261873-51


New Turkish Bath p52

doi:10.1038/scientificamerican07261873-52


En Route to the Great Exposition—Letter from United States Commissioner Professor R. H.Thurston p52

doi:10.1038/scientificamerican07261873-52a


On Girders and Floor Beams.—The Effect of Cross-Bridging p53

doi:10.1038/scientificamerican07261873-53


Patent Ventilating and Heating Stove p54

doi:10.1038/scientificamerican07261873-54


Automatic Car Coupler p54

doi:10.1038/scientificamerican07261873-54a


Great Balloons pp55 - 57

doi:10.1038/scientificamerican07261873-55


Recent American and Foreign Patents pp57 - 58

doi:10.1038/scientificamerican07261873-57


Value of Patents and How to Obtain Them Practical Hints to Inventors p58

doi:10.1038/scientificamerican07261873-58


Answers to Correspondence pp59 - 60

doi:10.1038/scientificamerican07261873-59b


Communications Received p60

doi:10.1038/scientificamerican07261873-60


Schedule of Patent Fees p60

doi:10.1038/scientificamerican07261873-60b


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