SA Supplements Vol 87 Issue 2248supp

SA Supplements

Volume 87, Issue 2248supp

You are currently logged out. Please sign in to download the issue PDF.

Features

The Rôle of Selection in Evolution—I

An Agency for the Elimination of Variations

W. E. Castle

Maori Burial Chests

The Palate of Civilized Man

And Its Influence on Agriculture

David Fairchild

Undamped Currents in “Supper-Conductors”

Warping of Steel through Repeated Quenching

Pond Collecting: A Tip

Causes and Prevention of Myopia

New uses for some Raw Products

Breaking of Liquid Skins

The Production of Copper

The Constitution of the Earth's Interior

Anastigmatic Eyepieces

A Wax Medium and Process for the permanent Coloring of Photographs

A. Vernon Godbold

Resistance of Ships

Stability of Emulsions in the Constricted Tube and Marble Device for Anaerobiosis

The Bacterial Flora of Roquefort Cheese

An Electro-Magnetic Alternating Current Rectifier

How It can be made by the Amateur

George F. Haller

The Thermo-Locomotive

A New Double Tariff Meter

The Tonka Beans of Commerce

Electric Welding for Shipbuilding

Lloyd's Chief Ship Surveyor's Views

Phototropy: the Action of Light on Crystals

Exposing on Line Subjects