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Germania—A Colossal Statue for the Leipzig Monument, by Prof. R. Siemering

Recent Engineering Progress

Ailsa Craig Fog Signal Machinery

Housing for Ships' Boats

The Great Aqueduct, New York City

Coal Mining

The Strength of Punched and Drilled Plates

Ball Thrust Bearings

Henning's Testing Apparatus

Chimney at Mechernich, Germany

Canals and Railways in Colorado

The Brotherhood of Railroad Brakemen

Aerated Bread Making

By Killingworth Hedges

Loze & Helaer's Filtering Apparatus

The Operation of the Shutter in Instantaneous Photography

Electrical Bleaching Process

The Wire Creeper

The Royal Mint

Time in Geology

By G. H. Darwin

A New Iron Oxidizing Process

A Rare Orchid

(Vanda Lowi)


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September 25, 1886