Feature

Photosynthesis Clue

[Photograph]: Trained Porpoise

Snakes Battle Cancer

Grow Your Own Vitamins If You Have Garden

From the Winners’ Reports

X-Rays at the Front

Viruses Can Help Man as Well as Harm

Nature Ramblings: Hepatica

Range Pest Beaten by Imported Beetles

New Machines and Gadgets

Top Two of Forty Winners

Front Matter