Stellar Distribution and Movements
What Determines the Arrangement of Stars in Space, and their Motion?
Volume 72, Issue 1871supp
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Features
The Iron-Ore Supplies of the World
How shall We Meet Future Demand?—An Inventory
Document Photoǵraphy—Its use in the Courts
The Camera is Mightier than the Eye
Photoǵraphic Receiver for Wireless Teleǵraph Siǵnals
The Rollinǵ of Ships and the Possibility of Capsizinǵ
The Dynamics of the Problem
A Midniǵht Visit to the Zooloǵical Gardens Sleepy and Lively Animals
The Manufacture of Permanent Maǵnets
An Industry of Comparatively Recent Growth
Cost of Power; Conversion Factors
A useful Table of Derived Units
Aviation and Arterial Pressure
The East Coast Petroleum Fields of New Zealand
A Concise Survey of the Situation
The R. E. P. Monoplane
The Latest Model. With All-Steel Body
Car for Oilinǵ Streets
The Road Spinhler Adapted to a New Function
Researches in the use of Cement
Metal Corrosion in Gaseous Atmosphere
An Excursion into Physioloǵical Chemistry
Review of the Trend of Modern Progress
The Principle of Relativity
A Revolution in the Fundamental Concepts of Physics