Table of contents

Baird's Spark Arrester - p9

doi:10.1038/scientificamerican09281850-9a

Sale of the Franklin Railroad - p9

doi:10.1038/scientificamerican09281850-9b

Central Railroad - p9

doi:10.1038/scientificamerican09281850-9c

The First Railroad in Wisconsin - p9

doi:10.1038/scientificamerican09281850-9d

Skill of Dentists - p9

doi:10.1038/scientificamerican09281850-9e

British Association for the Advancement of Science - p10

doi:10.1038/scientificamerican09281850-10

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American Association for the Advancement of Science - p10

doi:10.1038/scientificamerican09281850-10a

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Coal - p10

doi:10.1038/scientificamerican09281850-10b

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The Voltaic Battery - p11

doi:10.1038/scientificamerican09281850-11

Compressed Air Engine - p11

doi:10.1038/scientificamerican09281850-11a

Foreign Correspondence - p11

doi:10.1038/scientificamerican09281850-11b

Tea Cultivation - p11

doi:10.1038/scientificamerican09281850-11c

Washington Irving's British Copyright - p11

doi:10.1038/scientificamerican09281850-11d

Improvement in the purifying of Gas - p12

doi:10.1038/scientificamerican09281850-12

Improvement in the Manufacture of Flour - p12

doi:10.1038/scientificamerican09281850-12a

Appropriation for Electro Magnetism - p12

doi:10.1038/scientificamerican09281850-12b

New and Improved Kind of Soap - p12

doi:10.1038/scientificamerican09281850-12c

Invention for the Opening of Iron Shutters of Stores - p12

doi:10.1038/scientificamerican09281850-12d

Philadelphia Art-Union Plate - p12

doi:10.1038/scientificamerican09281850-12e

Ocean Steamers - p12

doi:10.1038/scientificamerican09281850-12f

Interesting to Inventors - p12

doi:10.1038/scientificamerican09281850-12g

No. 1 Vol. 5, Sci. Am - p12

doi:10.1038/scientificamerican09281850-12h

Propellers - p12

doi:10.1038/scientificamerican09281850-12i

Erratum - p12

doi:10.1038/scientificamerican09281850-12j

Genius is Democratic - p13

doi:10.1038/scientificamerican09281850-13

Our Foreign Correspondence - p13

doi:10.1038/scientificamerican09281850-13a

Machine for the Artificial Production of Ice - p13

doi:10.1038/scientificamerican09281850-13b

To our Cotemporaries - p13

doi:10.1038/scientificamerican09281850-13c

A Question for the Curious—Molten Metals - p13

doi:10.1038/scientificamerican09281850-13d

The Sea Serpent - p13

doi:10.1038/scientificamerican09281850-13e

War about the Materials of the Washington Monument - p13

doi:10.1038/scientificamerican09281850-13f

Prizes by the American Institute - p13

doi:10.1038/scientificamerican09281850-13g

An Improved Water Wheel - pp13 - 14

doi:10.1038/scientificamerican09281850-13h

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Iron Direct from the Ore - p14

doi:10.1038/scientificamerican09281850-14

The Sinking of Ice - p14

doi:10.1038/scientificamerican09281850-14a

Steam between Philadelphia and Liverpool - p14

doi:10.1038/scientificamerican09281850-14b

The Quickest Passage - pp14 - 15

doi:10.1038/scientificamerican09281850-14c

To Correspondents - p15

doi:10.1038/scientificamerican09281850-15

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Patent Claims - p15

doi:10.1038/scientificamerican09281850-15a

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Scientific Memoranda - p16

doi:10.1038/scientificamerican09281850-16

Idiocy—Opium - p16

doi:10.1038/scientificamerican09281850-16a

Van Kuran's Patent Railroad Car Wheel - p16

doi:10.1038/scientificamerican09281850-16b

How to Lengthen a Leg - p16

doi:10.1038/scientificamerican09281850-16c

Trees of the South - p16

doi:10.1038/scientificamerican09281850-16d

An Insect Scourge - p16

doi:10.1038/scientificamerican09281850-16e

Caving in of Mines - p16

doi:10.1038/scientificamerican09281850-16f

Kanawha, Va., Salines - p16

doi:10.1038/scientificamerican09281850-16g

New Prospectus - p16

doi:10.1038/scientificamerican09281850-16h