Ordnance on the Allied Front—I
Developments in Artillery during the War
Features
Migratory Butterflies
The Treatment of Chemical Subjects by the Daily Press
A Mysterious Fish with Arabic Inscriptions
Use of Stereoscope for Viewing Contour Maps
Anomalies of the Animal World—Part XI
Flying Frogs and other Curious Batracians
Evaporation from Surfaces of Crystals
Quantitative Micro-Analysis
Radiation from System of Electrons
Danger in Flying through Clouds
Battle Telephones
How Orders and Information are Transmitted at the Front
A Dwarf Elephant Discovered
Absorption and Radiation of the Solar Atmosphere
Early Potatoes
Problems of Atomic Structure—VI
Differences Characteristic of Different Elements, and Mechanism of the Molecule
Colloids and Chemical Industry
Acid-Proof Nickel-Copper-Tungsten-Iron Alloys
Occultation of a Star by Saturn's Rings
Spontaneous Ignition of Haystacks
Submersible Cargo Vessels
Testing Screw Threads
The Coral-Reef Problem
And the Evidence of the Funafuti Borings
