SA Supplements Vol 69 Issue 1787supp

SA Supplements

Volume 69, Issue 1787supp

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Features

Quantitative Vs. Qualitative Thinking

R. W. Raymond

Police Dogs

Canine Detectives

Karlernst Knatz

A Scientific Classification of Smells

The “Typical” Man who does Not Exist

The Composite of a Human Group

R. S. Woodworth

Electricity and Light in Modern Medicine

A New Therapeutic Agent

Theodor Schueler

Solar Vortices and Magnetic Fields.—I

Recent Study of the Sun

George E. Hale

Scientific Guesswork

The Value of Loose Methods

Exotic Dainties

The New King's Dock at Swansea

C. Van Langendonck

The Paris Floods and their Prevention

Heavy Electric Locomotives

Some Modern Developments

C. L. De Muralt

Paradoxes of Acceleration

A Suggestion for the Teacher of Mechanics

C. E. Guillaume

A New Method of Reversing Turbines

Foettinger's Turbine Propulsion System with Turbo-Transformers

Aeroplane Stability

Some New Theories

G. H. Bryan

The Remarkable Conduct of a Drop of Mercury

Electrical Notes

Science Notes

Trade Notes and Formulæ