SA Supplements Vol 65 Issue 1692supp

SA Supplements

Volume 65, Issue 1692supp

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Features

A Nicely-Posed Group of Five

Photographing Alligators

Herbert G. Ponting

Important Report on Geological Chemistry

A Story of Whewell and Hamilton

Cassius J. Keyser

Quality of Water in the Potomac River

Atmospheric Nitrogen—II

Its Fixation in America

George M. Heath

Your Horse's Feet

The Treatment of Timber

The Open-Tank Method

Carl G. Crawford

The Action of Alcohol

A Physician's Estimate

A. R. Cushing

Saturn and its Rings

Seen from Various Points of View

Paris to own the Eiffel Tower

The Earth as a Clock its Rotation

Poynting

The Instinct of Feigning Death

A Protective Device Employed by Some Animals

S. J. Holmes

The Work of Hugo De Vries

A Simple Explanation of his Mutation Theory

Herbert Maule Richards

The Poulsen Wireless Telephone

System of the German Wireless Telegraph Company

Otto Nairz

Protecting Coasts Against Erosion

A New System

Aluminium and Bauxite

Dew-Ponds

An Interesting Account of a Curious Phenomenon

Edward A. Martin

Is Your Kitchen Sanitary?

Sir Humphry Davy as Seen by his Contemporaries

Science Notes

Electrical Notes

Trade Notes and Formulæ