
Inventions New and Interesting - June 28, 1913
Simple Patent Law; Patent Office News; Notes on Trademarks

Inventions New and Interesting - June 28, 1913
Simple Patent Law; Patent Office News; Notes on Trademarks

Tests on a 10,000 Horse-power Fttinger Transformer
Hydraulic Gear for Marine Turbines

The Lotschberg or Bernese Alpine Railway
Modern Engineering for the Benefit of the Tourist

Guns for Submarines
A Weapon That Swings Below Decks During Submergence

X-ray Pictures of Micro-organisms

A German Police Telephone
Scientific Aids for Patrol Service

A Glimpse of a Scenic Painter's Studio
A Profession That Calls for an Intimate Acquaintance With Historic Conditions

The Manufacture of Porcelain Insulators
Testing the Products for Leakage at High Tension

Forcing Plants by Means of Radium
Treatment Must Be Applied During “Period of Rest”

Refuse Disposal at Furth, Germany
Up-to-date Methods in City Hygiene

Apparatus for Measurinǵ the Velocity of Explosive Reaction

An Apparatus for Weighing Liquids in Tanks, Immunity Against Poisons

The Reality of Molecules
How an Abstract Conception of the Ancients Has Become a Concrete Fact

The Evolution of the Art of Writinǵ
Some Forerunners of Our Modern System

A New Safe that Resists the Blowpipe

A School for Colonial Science
The Newest Departure in German Educational Work

The Influence of Liǵht on Veǵetation
The Most Favorable Conditions for Growth at Different Periods of a Plant's Life

Piercing the Jungfrau Tunnel
A Remarkable Engineering Feat in the Swiss Alps

The Bernina Railway
From Valley Vineyattl to Mountain Glacier

Spitzberǵen, Its Past and Future
Winter Sports for the Modern Summer Tourist

Transparent Anatomical Preparations
Seeinǵ through Bone without X-Rays

The Inventor's Department- November 25, 1911
Simple Patent Law; Patent Office News; Inventions New 8nd Interesting

Hospital Cars of the Swiss Federal Railways
Carrying the Sick by Rail

Municipal Milk Supply in Germany
The Remarkable Institution of the City of Dresden