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Problems of Atomic Structure—I

Differences Characteristic of Different Elements, and Mechanism of the Molecule

By J. J. Thomson

Appetites and Aversions as Constituents of Instincts

By Wallace Craig

The “Lafayette”

The Turtles of the West Indies

The Possibilities of Breeding Turtles in the Bahama Islands

By Theodoor de Booy

The Determination of Surface-Tension

By T. W. Richards and L. B. Coombs

Substitutes in the German Electrical Industry

Old Materials used in New Ways and New Materials Devised

A Monument to the Hun

The Salvage of U-Boat Victims—I

Methods by which many may be Recovered after the War

By A. Russell Bond

Destroying the Argentine Ant

Ferro-Concrete Ships—II

A Review of some of the Technical Features of Construction

By T. J. Gueritte

Failure in Metals

Its Cause and Diagnosis

By F. Rowlinson

History in Tools

An Important Factor in Civilization that has been Neglected

By W. M. Flinders Petrie

The Merchant Ship of the Future

Problems of the Design and Construction of Merchant Ships

By W. S. Abell


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