A Psychological Analysis of Stuttering
Indicating Faulty Visualization at Time of Speech
Features
Effect of Smoke on Trees
Cancer—a Disease of Many Forms
The French Life-Saving Helmet
Which Has Greatly Reduced the Number of Head Wounds
The Noise of a Bullet
Cleaning a Steel Knife
Building a Big Earth Dam
Interesting Details and Methods of Construction
A Method of Detecting Various Mineral and Alkaloid Poisons in Water
The Transformation of Pure Iron
A Discussion of Certain Physical Properties, and the Question of Allotropy
Protective Coatings for Metals
A Review of Various Processes for the Prevention of Oxidation
Some Noted Zoological Parks
The Gardens of the Zoological Society of Philadelphia
Cheap Subsitute for Horn
Germany Devises Substitutes
The Hardwood Distillation Industry
And What the Chemist Has Done for it
Action of Acetylene on Metals
The Cause and Cure of Pellagra
The Electrical Universe
A New Method of Mining Coal
Open Mining Made Possible by Giant Shovels
Genus Allium
Antiquity and Utility
Artificial Rain
Rifle Fire
How it is Employed in Attack and Defense
Chinese Methods of Operating Machinery
Electric Activity in Ore Deposits—I
Complicated Conditions and Some of the Results
