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Scientific Enigmas

By Lord Salisbury

Shoes for Walking

Methods of Mine Timbering

By W. H. Storms

The Generation of Chlorine for Laboratory Purposes

By F. A. Gooch and D. Albert Kreider

An Improved Compound for Use in the Manufacture of Matches

By H. Priester

Apparatus for Collecting Samples of Water Some Distance Beneath the Surface

By William T. Burgess

Notes on Aluminum

By George Frederick Andrews

Some Laboratory Apparatus

By A. Bidet

A Great Cotton Mill

Insect Secretions

By E. A. Butler

Some African Pests

By Mary Ferguson

Dynamite in Antiquity

Prehistoric Remains in Florida

Rubus Japonicus Tricolor

The Origin of the Gold of Quartz Veins

By J. Logan Lobley


By Percival Lowell


Haffkine's Cholera Inoculation


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