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The Exhibit of the Baltimore & Ohio Railroad at Chicago

By John C. Trautwine

A Javanese Theater

Variable Power Gear for Locomotives and Cars

By Ed. C. De Segundo

The Mississippi River

Improved Oil Press

An Automatic Process for the Manufacture of Vinegar

The Production of Vacuum in Evaporating Apparatus

By T. H. Cambier

Getting and Distributing the News of the World

An Emergency Staircase

Galls and their Occupants

By E. A. Butler

Atoms and Sunbeams

By Robert Ball

A New Sun Dial

The New Excavations at Troy

Wasps and Grapes

The Oil-Producing Plants of Formosa

Bleeding Bread

Vanilla Cultivation in Mexico

Great Telescopes of the Future

By Alvan G. Clark

A Field for Woman's Work in Astronomy

By M. Fleming

Pilocarpine: Its Physiological Action and Therapeutic uses with Exhibition of Specimens Showing Change in the Color of the Hair

By D. W. Prentiss

A Simple Method of Sterilizing Water for Domestic Purposes

By Francis Watts

Silicide of Carbon

Liquid and Solid Air

By John S. Mckay

An Improved Alembic

Nitro-Metals, a New Series of Compounds of Metals with Nitrogen Peroxide


  • The German State Institute for Physical Technology

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November 11, 1893

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