BIRDS' NESTS 88
BY JOHN BURROUGHS.

BIRDS IN THEIR RELATION TO AGRICULTURE 121
BY LAWRENCE BRUNER.

THE SCISSOR BEAK 143
BY CHARLES DARWIN.

THE CONDOR 146
BY CHARLES DARWIN.

THE UMBRELLA BIRD 153
BY SIR A. R. WALLACE.

HUMMING BIRDS 155
BY THOMAS G. BELT, F.G.S.

THE FOUNDATIONS OF A WONDERFUL CITY 158
BY MAURICE MAETERLINCK.

WASPS 175
BY THOMAS G. BELT, F.G.S.

A WASP AND ITS PREY 180
BY G. W. AND E. G. PECKHAM.

LEAF-CUTTING ANTS 190
BY THOMAS G. BELT, F.G.S.

SOME WONDERFUL SPIDERS 197
BY CHARLES DARWIN.

WHAT I SAW IN AN ANT'S NEST 201
BY ANDREW WILSON.

THE WILD LLAMA 228
BY CHARLES DARWIN.

BATS 232
BY W. S. DALLAS, F.G.S.

HOW SNAKES EAT 258
BY CATHERINE C. HOPLEY.

WHAT WORMS DO 264
BY CHARLES DARWIN.

TWO FOPS AMONG THE FISHES 284
BY W. S. BLATCHLEY.

SEA SLUGS AND CUTTLE-FISH 292
BY CHARLES DARWIN.

THE COW FISH 295
BY SIR ALFRED RUSSELL WALLACE.

OLD RATTLER AND THE KING SNAKE 297
BY DAVID STARR JORDAN.

THE STORY OF A STRANGE LAND 303
BY DAVID STARR JORDAN.

THE COLOR OF ANIMALS 315
BY SIR JOHN LUBBOCK BART.

PROTECTIVE RESEMBLANCES IN SPIDERS 343
BY E. G. PECKHAM.

THE BATH OF THE BIRDS 369
BY RICHARD JEFFERIES.

THE LOON 378
BY HENRY D. THOREAU.

THE DARTMOOR PONIES 384
BY ARABELLA R. BUCKLEY.

BIOGRAPHICAL NOTES 396

SUGGESTIONS FOR SUPPLEMENTARY READING 398

NOTE.

The publishers' acknowledgments are due to Mis