Inventors at the World's Fair - p48

doi:10.1038/scientificamerican07231892-48

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Defective Boilers and Incompetent Engineers - pp48 - 49

doi:10.1038/scientificamerican07231892-48a

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An Improved Boiler Furnace - p50

doi:10.1038/scientificamerican07231892-50

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A Salt Sprinkler for Table Use - p50

doi:10.1038/scientificamerican07231892-50a

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Improved Steam Whistles - p50

doi:10.1038/scientificamerican07231892-50b

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Improved Method of Handling Nitro-Glycerine - pp50 - 51

doi:10.1038/scientificamerican07231892-50c

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Eruption of the Volcano of Etna - p51

doi:10.1038/scientificamerican07231892-51

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Great Mineral Water Baths - p52

doi:10.1038/scientificamerican07231892-52

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Cyrus W. Field - p53

doi:10.1038/scientificamerican07231892-53

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Inexpensive Electric Motors - p54

doi:10.1038/scientificamerican07231892-54

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A Visit to Chalcedony Park, Arizona - pp55 - 56

H. C. Hovey

doi:10.1038/scientificamerican07231892-55

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The Water Lily House at Kew - p57

doi:10.1038/scientificamerican07231892-57

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To Inventors - p59

doi:10.1038/scientificamerican07231892-59b

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