The Specificity of Proteins and Carbohydrates
In Relation to Genera, Species and Varieties
Features
The Ignition of Explosive Gas Mixtures by Electric Sparks
Artificial Camphor
The King of Elephants
One of the Surprises of Trench-Digging
A New use for Sawdust
The Washington Navy Yard Wind Tunnel
By Which Various Aeronautical Problems Are Studied
Vine Hedges
Food Selection—II
For Rational and Economical Living
Ancient Principles of Physiognomy
An Interesting Fact Relating to Cement
A Museum Becomes the Seat of Government
How the Quarters of the Geological Survey of Canada Were Converted for Legislative Use
War Brings Prosperity to the Cutlers
The Utilization of Peat
Salts, Soil-Colloids and Soils
Problems of Reclaiming and Maintaining Waste Land
The Surface-Tension at the Interface between Two Liquids
Making Wild Animals take their Own Pictures
Special Apparatus for Making Nature Studies
The Simplex Calendar—A Correction
A Reagent for Etching Mild Steel
“Ghost Lines”
Phenomena Observed in Large Steel Castings
