Features
The Nile Expedition
Some Curious Facts in Plant Distribution
The Chemical Laboratories of Germany
An Old Roman Vessel in Lake Nemi
Nasr-Ed-Din, the Late Shah of Persia
The Gigantic Birds of Southern Patagonia
Selected Formulæ
Comparative Exposures for Lantern Slides by Contact and Reduction
Electrical Notes
Miscellaneous Notes
Engineering Notes
The Origin of the Bessemer Process
To the Editor of Engineering
The Austro Hungarian Fleet on the Danube
Mixed Constructions with Metallic Skeletons
Machines for Composing Letter-Press Printing Surfaces
Heavy Hydraulic Riveting Machine
Centrifugal Series Pump and Engines
Latest Inventions in Aerial Navigation
Automatic Firing Guns
II.—Introduction of Rifling
