The Ruins at Tebessa in Algeria
An African Relic of Roman Occupation
Features
Photodynamic Phenomena
Luminous Animals and Plants
History of Map making and Topography
With Illustrations of old Charts
Water in Anthracite Mines
Titaniferous ore of Iron Mountain, Wyoming
Heavy Freight Trains
The Growth Of Car Capacity
The Control of Monitors
The Newman Kinematic Apparatus
A Contrivance Which Simplifies the Study of Mechanism
A Machine for Laying Rails in Streets
How Tracks can be Laid Without Impeding Traffic by the English Correspondent of the Scientific American
Unsolved Problems in the Design and Propulsion of Ships—II
Loading Watertight Compartments, and Stability
Improvements in Edison's Secondary Battery
The Simplified Design of the New Cells
A Mammoth Cave Cathedral
Some New Discoveries of Interest
The Science of Measurement
Its Application to Astronomical Research
