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Features

Natural Measurement of Time—I

The Year and its Limitations

By N. F. Dupuis

Paper-Yarn Textiles and Dyeing and Impregnating Them

The Impact Origin of the Moon's Craters

Features Peculiar To Lunar Physiography

By Donald Putnam Beard

Blowing and Breathing Wells

Dielectrics in Electrostatic Fields

The Indian Silk Industry

Imperial College of Science and Technology, South Kensington

By H. Maxwell- Lefroy

Cost in Cement Manufacture

The Art of Modern Taxidermy

Realistic Methods of Mounting Animals for Museums

By Carl Hawes Butman

A Convenient Battery Cell Tester

The Electrical Properties of Gases—I

Which Enable Important Problems in Physics to be Studied

By J. J. Thomson

Physico-chemical Considerations on Benzol Recovery from Coal-Gas

Automatic Pistols

Mechanism of a Recently Adopted Type of Military Arms

By H. Volta

Melting Zirconia and Production of Ware Therefrom

Osmotic Pressure

The Conservation of Garments in Laundering

The Responsibilities of the Manufacturer, the User and the Launderer

By H. G. Elledge

Boiler Efficiency

Transfer of Heat to the Water

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    July 14, 1917

    Think Outside the Gift Box