SA Supplements

Torpedo Ships

The Blaauw Krantz Viaduct in Cape Colony

A Plumbing Test

The Gas Engine

Rapid Construction of the Canadian Pacific Railway

The Osgood Excavator

Capstan Navigation on the Volga

The Osgood Mammoth Excavator

Steamboat Equipment of War Vessels

Improved Steam Trap

Critical Methods of Detecting Errors in Plane Surfaces

On the Moulding of Porcelain

Photometrical Standards

Bleaching or Dyeing Yarns and Goods in Vacuo

A New Actinometer

A Photo Printing Light

Photo-Tricycle Apparatus

Alphabet Designed by Godfrey Sykes

Astronomical Photography

Electricity as a Preventive of Scale in Boilers

Old Wrought Iron Gate

Brief Sanitary Matters in Connection with Isolated Country Houses

The Organization and Plan of the United States Geological Survey

Time Required to Digest Different Foods

Sanitary Cooking

The Sunflowers

Lye's Fuchsias

Patents - April 11, 1885