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Determination of Stress-Bowstring Girder

By Lieut. George S. Clarke

Cement for Wooden Baths

Combined Engine and Clay Mill

The Bourdon Pressure Gauge

Rack Railway Locomotive

The Ice Boat Whiff

The New Bridge at Pittsburgh

New Holtz Electrical Machine

By Elihu Thomson

The Edson Recording Steam Gauge

Pipes for gas and other Purposes

On Welding

By Richard Howson

Inventions of the Century

Abstract of a lecture by Prof. Pliny E. CHASE, before the Franklin Institute, March 6, 1877

Lubrication

By R. H. Thurston

A New Respirator for Firemen

Mordanting Cotton for Aniline Dyes

Plan for Fireproof Flooring

Mine Ventilator

Iron and Steel

By C. W. Siemens

Size of Hydrogen Atoms

Solid Steel Castings

Barnyard Manure

Birds in Gardens

Sussex Cattle

Preservation of Fodder

Corn Stover and Hay

Cotton Seed as Manure

Manurial Substances

Horticultural Notes

The Tulip Tree

By Wm. Bacon

Value of the Dung of a Cow

Photographic Reproduction of Bank Notes

Photography in Lace Factories

Substitute for Glass in Dry Plates

Weakening Opaque Negatives

By E. Riewel

Photo Hints

Departments

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    May 05, 1877

    Complex Causes. Alternative Solutions.

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