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The Technology and uses of Peat

By C. W. Parmelee

Manufacture of Illuminating Gas

I. Coal Gas

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 Study of Color Phenomena

A New way of making Phosphorus

Black Sands Investigation

Types of Early Steam Engines Still Working in England

The English Correspondent of Scientific American

The Viagraph

A Simple Apparatus for Parallel Forces

By DeForrest Ross

A Few Problems of the Preserving Industry

By E. Kr*amp*uuml;ger

Gear Ratio, Weight, and Motor Characteristics

To Determine the Horse-Power of a Small Steam Engine

By C. H. Perrine

Photographic Notes

Engineering Notes

Science Notes


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    March 02, 1907

    Science for the Modern World