Volume 8, Issue 200supp
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Features
The Ostrich Parks of Algiers
The Leather Turtle
The Beginning and End of the Worlds
The Age of Ice
How to Explore for Minerals
A New Meteorite
The South Pass Jetties
Notes on the Consolidation and Durability of the Works, with a Description of the Concrete Blocks and other Constructions of the Last Year
New Marine Railway
Compound Marine Engine
Mackenzie's Screw Propeller Assistant
Acoustical Fire-Damp Detecter
The Theory of Roller Milling
The Miller, from Gustav Pappenheim's “Popular Treatise on Milling”