Needed—A Rational Railroad Track - p426

doi:10.1038/scientificamerican05251907-426

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Excellent Foundations for the Gatun Locks - p426

doi:10.1038/scientificamerican05251907-426a

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The Smoke Peril at Fires - pp426 - 427

doi:10.1038/scientificamerican05251907-426b

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The American Museum of Safety Devices and Industrial Hygiene - p427

William H. Tolman, Ph.D.

doi:10.1038/scientificamerican05251907-427

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Extraordinary Insect Enlargements - pp428 - 430

Walter Beasley

doi:10.1038/scientificamerican05251907-428

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The New White Star Liner “Adriatic” - pp431 - 432

doi:10.1038/scientificamerican05251907-431a

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Charles Haynes Haswell - p433

doi:10.1038/scientificamerican05251907-433

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Eclipse of the Sun in July, 1907 - p434

Frederic R. Honey

doi:10.1038/scientificamerican05251907-434

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Building a Town Site by Suction Dredge - pp435 - 436

Day Allen Willey

doi:10.1038/scientificamerican05251907-435

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A Curious Illusion - p436

Gustave Michaud

doi:10.1038/scientificamerican05251907-436

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An X-Ray Stereoscope - p436

Alfred Gradenwitz

doi:10.1038/scientificamerican05251907-436a

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