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Lieut. Shackleton, A Plea for Co-operation, A Reform in Meteorological Units

Engineering, Electrical, Science

Timing an Automobile Race

An Automatic Instrument That Takes the Place of a Stop-Watch

A Fine Long-Span Masonry Arch Bridge

By Our English Correspondent

Our Seacoast Defenses

By H. E. Cloke

Our Civil Day

Its Arrival on and Progress Around the Earth

By Daniel Arthur

Patent Department

The Energy of a Coiled Spring


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