The Adams Gas Process - pp15 - 16

doi:10.1038/scientificamerican07131878-15

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The Invention of the Microphone - p16

doi:10.1038/scientificamerican07131878-16

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Preparation of Iron Fuels - p16

doi:10.1038/scientificamerican07131878-16a

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Millstones - p16

doi:10.1038/scientificamerican07131878-16b

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An Hour with Edison - p17

doi:10.1038/scientificamerican07131878-17

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Unsinkable Steam Vessels - p18

doi:10.1038/scientificamerican07131878-18

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Lever and cam Valve - p19

doi:10.1038/scientificamerican07131878-19

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Ingenious Toy - p19

doi:10.1038/scientificamerican07131878-19a

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Milk as a Substitute for Blood Transfusion - p19

doi:10.1038/scientificamerican07131878-19b

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A Simple Fire Escape - p19

doi:10.1038/scientificamerican07131878-19c

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Communication - p20

doi:10.1038/scientificamerican07131878-20

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The Etiology of Asiatic Cholera.—a New Theory - p20

Bellerophon

doi:10.1038/scientificamerican07131878-20a

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Proposed Process for the Fixation of Atmospheric Nitrogen - p21

John Blair

doi:10.1038/scientificamerican07131878-21

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Improved Beehive - p22

doi:10.1038/scientificamerican07131878-22

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Cross'Improved Gas Condenser - pp22 - 23

doi:10.1038/scientificamerican07131878-22a

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The Swiss House at the Paris Exposition - p23

doi:10.1038/scientificamerican07131878-23

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Astronomical Notes - p23

Berlin H. Wright

doi:10.1038/scientificamerican07131878-23a

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The St. Benoit Twins - pp24 - 25

doi:10.1038/scientificamerican07131878-24

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Curious Hedge figures - p25

doi:10.1038/scientificamerican07131878-25

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The Leona Goat Sucker - pp25 - 26

doi:10.1038/scientificamerican07131878-25a

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