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Manufacture of Illuminating Gas

I. Coal Gas

The Technology and uses of Peat

By C. W. Parmelee

Special Steels for Automobile Construction

Corn-Harvesting Machinery

By C. J. C. Zintheo

Cost of Hauling Crops by Wagon from Farms to Shipping Points

Concrete Surfaces

By Henry H Quimby

Advantages and Applications of the Electric Drive

By F. B. Crocker and M. Arendt

Dynamo Brake for the Accurate Rating of Gasoline Motors

The English Correspondent of Scientific American

Electricity and Vegetation

Utilization of Waste Materials.—II

Cork Waste

A New way of making Phosphorus

A Study of Color Phenomena

Black Sands Investigation

The Viagraph

Types of Early Steam Engines Still Working in England

The English Correspondent of Scientific American

A Few Problems of the Preserving Industry

By E. Kr*amp*uuml;ger

To Determine the Horse-Power of a Small Steam Engine

By C. H. Perrine

Gear Ratio, Weight, and Motor Characteristics

A Simple Apparatus for Parallel Forces

By DeForrest Ross

Engineering Notes

Photographic Notes

Science Notes


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    March 02, 1907

    20% Sitewide for President's Day