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Mr. Eads' Ship Rail Way for the American Isthmus

Completion of the Caracas Railway

Train Resistance

Improved Floating Breakwater

Elastic Steel Railway Wheel

Test Trials with a New Whitworth 20-Ton Gun

Burnichon's Multiple Template

Improved Telemeter

Apparatus for Solar Distillation of Fresh Water from Salt Water

By Josiah Harding

Compasses for Drawing Ellipses

Kreutzberger's Rotary Shaping Machine

Colors and Shades Applicable to Leather Dyeing

By Eug. N. Beller

Gluten in Flour

The Manufacture of Cement in Ulster County, N. Y

The Static Telephone

By A. E. Dolbear

Cromwell Fleetwood Varley

History of the Electric Telegraph

Digestion of Cow's Milk

Are the Ruined Monuments of Yucatan Ancient or Modern?

The Early History of the North-American Continent

Address of C. H. Hitchcock of Hanover, N. H., Vice- President of Section E, Aug. 15, 1883, Before The American Association

New Method for the Determination of Nitrogen

By J. Kjeldahl

The Formation of Fat From Fat-Acids


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