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American Museum of Zoology

The General Admiral

Gas, Oil, and Burning Fluid

American Machines in Australia

Whitman's Turbine Windmill

Inventors' Honors--Strange Case

The Season

The Frigate Niagara

Social Progress of Workmen

Railroad Cars--Dead Weight

Observations on the Connection of the Elements by their Atomic Weights

Concrete Houses

Improved Smut Machine

Mechanics

Inventors, Millwrights, Farmers and Manufacturers

Will Saltpeter Explode?

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    Notes and Queries - April 23, 1859

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April 23, 1859