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The Iron Blast Furnace and the Characteristics of its Fuels—II

Definition of Blast Furnace and Classification of Fuels Used

By J. E. Johnson

Boiling Carbon

The Commercial uses of Bamboo

There is Hardly a Country in the World where the Plant is not Employed for Various Purposes

Social Evolution in Wasps

Its Development Corresponds to that of Anatomical Characters

By J. Penau

Fresh Air in Schoolrooms

Cloth Window Screens that let in Plenty of Filtered Air without Drafts

By John B. Todd

A Remarkably Fine Gas-Measuring Apparatus

The “Rio De Janeiro” now Owned by Turkey

Efficiency and the New Tariff

How Scientific Management Enables America to Compete with Cheap European Labor

By Harrington Emerson

A New Device Adopted by French Omnibus Companies

An Opiate Derived from Lettuce Juice

The Experimental Laboratory of the Automobile Club of France

Testing Internal Combustion Engines for the Automobile, the Flying Machine and the Farm

By Jacques Boyer

Safety of Life at Sea

Vigilance should never Relax on the Supposition of a Vessel being Unsinkable

The State of the Patent Office

The Annual Report of the Commissioner of Patents

The Origin of Petroleum


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    Recently Patented Inventions- February 21, 1914

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