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Lifting Bridge at Tarante, Italy

The Panama Canal

Street Pavement—Past, Present, and Future

By John H. Sargent

Willis' Speedometer

Economical Illumination from Waste Oils

By J. B. Hannay

Bottle Corking Machine

Wool Hat Making

The “Wood” Ammeter and Voltmeter

How to make a Galvanometer

By C. C. Hutchins

Electric Lighting of the Steamships Victoria and Britannia

Iodide of Starch

By H. B. Stocks

Chemical and Allied Industries

Group III.—Destructive Distillation

By Watson Smith

Apparatus for Fractional Distillation under Reduced Pressure

By L. Meyer

Measuring Definite Quantities

By H. Treskow

Robert Koch—His Work and Methods

By W. Lewis

A New Extractor

By R. Rempel

Laboratory Apparatus for Fractional Distillation

By P. Monnet

Dr. Zur Nieden's Portable Hospital or Barracks

On the Existence of Certain Elements, Together with the Discovery of Platinum, in the Sun

Contributions from the Physical Laboratory of Harvard University

By C. C. Hutchins and E. L. Holden

Animals Destructive to Submarine Cables

Building Plans and Specifications

Discoveries in Rome

The Church of the Holy Sepulcher, Jerusalem


  • Departments

    Patents - January 14, 1888

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