SA Supplements Vol 87 Issue 2244supp

SA Supplements

Volume 87, Issue 2244supp

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Features

Morphology and Biology

The Anthocyanin Pigments in Plants

And their Chemical, Physiological and Biological Functions

Making Hollow Concrete Articles

The Relation of Light to Health

Charles E. De M. Sajous

The Oyster Feeds both Man and Plants

Vibration: Mechanical, Musical and Electrical

Estimation of Injurious Dust in Mine Air by the Kotze Konimeter

Dyes in Photography

Their Use in Orthochromatic Work and for Non-Halation Plates

A. Seyewetz

The Dangers of Explosion

With Inflammable Liquids and Vapors

W. Payman

The Macoa Indians of Venezuela—I

An Expedition Among a Little Known but Ancient Race

Theodoor De Booy

Coal Gas for Motor Vehicles in England

Air Compressor Explosions

Habits of the Sparrowhawk

The Probable Trend of Aeroplane Design

R. F. Mann

Eradicating the Barberry

A Pitched Baseball

The Rationale of Its Seeming “Freaks”

Willard W. Griffin

Acetylene Mine Lamp

Alcohol from Wood Pulp Refuse

The Tree Wasp

The Formation of the Thread in the Spinning of Artificial Silk

Uniformity in Aerographic Records

The Desirability of Universal Scientific Units

Alexander McAdie

The “Duct” Keel in Sea-Going Steamers

The Time to Cut Walnut