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Features

The Ethics of Trade Secrets

By Frederick P. Fish

The Passing of American Square-Rigged Vessels

By James G. McCurdy

A Perpetual Calendar

By Charles E. Benham

Power Required for Refrigeration

By Charles L. Hubbard

Some Requirements of Carbureter Design

The making and the using of a Wireless Telegraph Tuning Device.—IV

By A. Frederick Collins

Alcohol Engines as a Future Power

By Elihu Thomson

The Development of the Frame of American Freight Locomotives

A Peculiar Bismuth-Tin-Lead Alloy

Vibration of Passenger Cars

Selecting the Proportions for Concrete

By William B. Fuller

The Treatment of Concrete Surfaces

By Linn White

The Cape to Cairo Railway

By Lewis Michell

Beet Sugar Manufacture in Italy

The Valuation of Bread

Bread from sifted flour or bread from the entire Grain?

By A. Kuellenberg

The Whiskies of Great Britain and Ireland

Scotch Whisky Malted Barley Distilleries

By H. W. Wiley

Some Facts about Varnish

Imitation Silver

Science notes

Internal Commerce during the Year 1906

Engineering Notes

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    February 16, 1907

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