
The SciencesNovember 20, 1915
Making Natural History Popular
Attractive Museum Groups of Our Common Pond Reptiles

Making Natural History Popular
Attractive Museum Groups of Our Common Pond Reptiles

Superheated Steam in Torpedo-Boat Engines

The Superheated Steam Unit
Some Remarkably Economical German Engines

An Important Development of the Steam Engine
Superheat as an Element of Efficiency

Modern Governing Mechanisms
A Review of American and European Devices