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Liquid Air and its Phenomena

By W. C. Peckham

How Cripples are Manufactured in Spain for the Parisian Market

Engines of the Steamship “Ultonia”

The Logical Arrangement of the Motive Power of Warships

By George W. Melville

The Squid in Art

Engineering Notes

Selected Formulæ

Miscellaneous Notes

The “Black Data” in Buchara

A Cradle Incubator for Newborn Infants

About Laundry Blues

How a Pope is Elected

Trade Suggestions from United States Consuls


The Fram Cream Separator


  • University of Pennsylvania Lecture Course. I

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April 29, 1899

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