Volume 66, Issue 1720supp
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Features
Marine Engineering, Past, Present, Future
From Reciprocating Engine to Turbine
The Hygroscopic Power of Core
The Advantages of Rich Mixtures in Concrete Construction
Aerial Propellers
Old and New Forms
Influence of Temperature on Radio-Active Transformations
Diagram of Electric Wave—Lengths
The Simplification of Calculating Wave Lengths
Explosion Gas Turbine or Combustion Gas Turbine?
A Simple Calculator
Some New French Toys
Exhibits at the Recent Lepine Exposition
Radioactive Elements
Their Number and their Properties
A $500 Prize for a Simple Explanation of the Fourth Dimension
Improved Health of the British Army in India
Concrete Pier at Santa Monica, Cal
The Second Concrete Pier in the World
The Brotan Locomotive Boiler
A New Engine Without Copper Plates and Braces
Sands their Relation to Mortar and Concrete
Photographic Developing
An Account of two Modern Methods
Singing and Speaking Stones
Some Ancient and Modern Wonders
Drifting to the Pole
Moving Water and Animals
The Effect of Agitated or Moving Water
White Throats
A Study of a Common Bird
Disinfectants
An Animal as an Engineering Structure
Some Factors of Safety Provided by Nature