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Geodetic Work in Spitzbergen

By J. H. Gore

Are our Winters Changing?

By Alfred J. Henry

An Egyptian Gardener

The Tomb of Nekht and What it Shows as to his Duties

Odontoglossum X Coradinei, West Bank House Var

Microbes in Co-Operation

By G. Clarke Nuttall

A New Automobile Fire Engine

Physical Measurements in Anthropology

Steam Navvy

Trade Suggestions from United States Consuls

Miscellaneous Notes

Selected Formulæ

Trade Receipts and Suggestions

Historic Cavalcade of Etienne Marcel

Trade with the Philippines, Porto Rico and Cuba

Building Railways in the Field by the Railway Corps of the German Army

Electricity in Coal Mining

By John Price Jackson and Frank F. Thompson

Motor Speed Regulation

By Alton D. Adams

Movable Electric Generator

Plea for a Working Standard of Light

By S. Everktt Doane

The Electric Tramway of the City of Tours

Liquid Hydrogen

Glacier Water

The Nuraghi of Sardinia and Similar Structures

Some Experiments in Making Rubber Substitutes

The Determination of Sound Direction

A Three-Color Process

By C. Fleck

Incandescent Mantles

By Vivian B. Lewes

Puncture Fluids for the Pneumatic Tire



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