Front Cover

Palm trees in summer: Photograph by Kumaran Sathasivam; see Nature Diary
for details.

Back Cover: 

Effect of polarisation on a picture: Photographs taken of mudflats with
a camera polarizer filter rotated to two different angles. In the first
picture, the polarizer is rotated to maximize reflections, so the surface
is glinting in the light. In the second, it is rotated 90° to minimize
reflections - almost all reflected sunlight is eliminated and the bottom
of the sea can be seen.

Front inside Cover:

Deimos: One of the moons of Mars (NASA)


Back inside Cover:

Liquid drops on the tips of leaves and stems are a sign of
guttation. Drops on the leaves are dew.  See text for more details.