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Features

160-Ton Hydraulic Crane

Cornish Pumping-Engines

New Decomposing Furnace

By R. C. Clapham

National Academy of Sciences

The International Exhibition of 1876

Opens May 10th, Closes November 10th

The U. S. Executive Department and the Government Building

Testing Safety-Lamps

The South

The Centennial Photograph Company

The Carriage Exhibition Building at the Centennial Exposition

Are the Japanese Slow Workmen?

The British Government Building at the Exhibition

Bridge Piers

By W. Sooy Smith

Lessons in Mechanical Drawing

By MacCord

The Ferroux Rock-Drill and Air-Com Pressor

By H. W. Pendred

Bishop's Plan for Submarine Tunnels

By Perry F. Nursey

Proposed Rolling Bridge over the Thames

Straightening the Course of the Danube River

The Ancient Roman Aqueducts

Changing Position of Propellers

By G. H. Brooks

New instrument for Solving Problems of Navigation

By T. Hill

Self-Stopping Pulley-Block

Beam Compass

How to make Spiral Springs

By Joshua Rose

Concrete Building

Soldering

By George M. Hopkins

Improved Laboratory Furnace

Kenyon's Low-Water Alarm

A History of Longhorn Cattle

By J. Nevill Fitt

Ammonia from the Nitrogen of the Air

The Taylor-Weatherhogg Balanced Slide-Valves

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    Why Do Facts Fail?

    Why Do Facts Fail?

    Deconstructing Denial