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Features

A National Park in the East

The Production of Slate

The Factor of Safety in Yacht Construction

Postage and the Export Trade

Our Foreign Trade for the Last Fiscal Year

Improvements in Our Tobacco

Some Soda Water Fountain Statistics

Science Notes

A New Miner's Drill

The Crankshafts of the Liner "Deutschland"

The "Polyphone"--Attachment for Phonographs

An Electric Brougham

The Boxing Kangaroo

Fuel Gas

By C. Francis Jenkins

Tree Dwelling in California

"Columbia" and "Shamrock"--A Comparison

Departments

  • Letters

    Correspondence - August 12, 1899

  • Departments

    Business and Personal - August 12, 1899

  • Recently Patented Inventions - August 12, 1899

  • Index of Inventions - August 12, 1899

  • Notes and Queries - August 12, 1899

  • Patents - August 12, 1899

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August 12, 1899

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