A CHARACTERISTIC PELAGIC BIRD OF THE SOUTHERN
SEA 128

THE PRAYING MANTIS (_Mantis Religiosa_) 138

PROTECTIVE COLORATION: A WINTER SCENE IN NORTH SCANDINAVIA 138

THE VARIABLE MONITOR (_Varanus_) 139
Photo: A. A. White.

BANDED KRAIT: A VERY POISONOUS SNAKE WITH ALTERNATING
YELLOW AND DARK BANDS 140
Photo: W. S. Berridge, F.Z.S.

THE WARTY CHAMELEON 140
Photos: W. S. Berridge, F.Z.S.

SEASONAL COLOUR-CHANGE: SUMMER SCENE IN NORTH SCANDINAVIA 141

PROTECTIVE RESEMBLANCE 142
Photo: J. J. Ward, F.E.S.

WHEN ONLY A FEW DAYS OLD, YOUNG BITTERN BEGIN TO STRIKE THE
SAME ATTITUDE AS THEIR PARENTS, THRUSTING THEIR BILLS
UPWARDS AND DRAWING THEIR BODIES UP SO THAT THEY RESEMBLE
A BUNCH OF REEDS 143

PROTECTIVE COLORATION OR CAMOUFLAGING, GIVING ANIMALS A
GARMENT OF INVISIBILITY (_Coloured Illustration_) 144

ANOTHER EXAMPLE OF PROTECTIVE COLORATION (_Coloured
Illustration_) 144

DEAD-LEAF BUTTERFLY (_Kallima Inachis_) FROM INDIA 146

PROTECTIVE RESEMBLANCE BETWEEN A SMALL SPIDER (_to the
left_) AND AN ANT (_to the right_) 146

THE WASP BEETLE, WHICH, WHEN MOVING AMONGST THE BRANCHES,
GIVES A WASP-LIKE IMPRESSION 147
Photo: J. J. Ward, F.E.S.

HERMIT-CRAB WITH PARTNER SEA-ANEMONES 147

CUCKOO-SPIT 147
Photo: G. P. Duffus.

CHIMPANZEE, SITTING 156
Photo: New York Zoological Park.

CHIMPANZEE, ILLUSTRATING WALKING POWERS 156
Photo: New York Zoological Park.

SURFACE VIEW OF THE BRAINS OF MAN AND CHIMPANZEE 157

SIDE-VIEW OF CHIMPANZEE'S HEAD 157
Photo: New York Zoological Park.

PROFILE VIEW OF HEAD OF PITHECANTHROPUS, THE JAVA APE-MAN,
RECONSTRUCTED FROM THE SKULL-CAP 157
After a model by J. H. McGregor.

THE FLIPPER OF A WHALE AND THE HAND OF A MAN 157

THE GORILLA, IN