Features
Inside a Lighthouse
Memory
Handwriting
Sagnes' Machine for making Moulds for Objects in Copper and Bronze
Meinesz's Compressed Air Dredging Apparatus
Drainage of Large Marshes
The Cost of Steam Power
Forged Steel Wheels
The Hull and Barnsley Railway Swing Bridge
American and English Freight Cars
The Cable Railways of Chicago.—Some of the Difficulties and Objections to their use in Crowded Cities
Ceramic Photography
Relief Printing Blocks from Photographs
Division of the Weight Unit
The Dendrometer.—An Instrument for Measuring Heights of Trees
The Decay of Building-Stones
The Baume Hydrometer Scale
The Magnetic Balance
Radiguet's Electric Light Apparatus
The New Morphological Element of the Blood
The Eruption of Krakatoa
Notes on New Caledonia
Rare Fishes
Trout and Trout Culture
Experiments on the Colors of Gems
On the Condensation of Gases
Lead
Departments
- Letters
Correspondence - March 22, 1884