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Revolving Bulkhead Door

The Largest and Fastest Paddle Steamer in Great Britain

By A. J. Sinclair

Rope Transmission

The Value of Machinery as an Industrial Lever

The Disposal of Garbage and Refuse

The Microbe of Yellow Fever

The Structure of Bacteria

Concerning Pumice Stone

Foremost in Letter Writing

The Salzburg Festival

Technology at the Tennessee Centennial

By Marcus Benjamin

The Queen's Hindostani Tutor

Electrical Notes

Engineering Notes

Miscellaneous Notes

Selected Formulæ

The Finding of the Remains of the Fossil Sloth at Big Bone Cave, Tennessee, in 1896

The Lioret Phonograph

Application of Electricity to Railroads Now Operated by Steam Power

By N. H. Heft



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