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The New Bremerhafen Dry Dock

Engineering in the United States Navy—Its Personnel and Material

Suggestions as to Improved Appliances for Launching Ships' Boats

By John Hyslop

Cuban Tobacco Industry

Photography in the Theater and the Studio with the Magnesium Light

Selected Formulæ

Miscellaneous Notes

Trade Notes and Receipts

Trade Suggestions from United States Consuls

Variation and some Phenomena Connected with Reproduction and Sex

Recent Excavations in Ancient Babylon

The Development of Iron Manufacture in the United States in the past Seventy-Five Years

By John Fritz

A Unique Impulse Wheel Generating Plant

The Transmission of Electrical Energy


Marine Deposits on the Ocean Floor

By John Murray



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