Skip to main content

Features

Recent Engineering Progress

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

Ailsa Craig Fog Signal Machinery

Housing for Ships' Boats

The Great Aqueduct, New York City

The Strength of Punched and Drilled Plates

Coal Mining

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

The Wire Creeper

Electrical Bleaching Process

The Royal Mint

Time in Geology

By G. H. Darwin

A New Iron Oxidizing Process

A Rare Orchid

(Vanda Lowi)

Departments

  • Departments

    Patents - September 25, 1886

Purchase To Read More

Already purchased this issue? Sign In to Access
Select Format
September 25, 1886

Beyond XX and XY

Biology. Identity. Equality.