LIST OF PLATES 



HUMMING BIRDS (in Colour) . . . Frontispiece 



PLATE FACING PAGE 



I. THE WONDERFUL FLINTY STRUCTURES OF THE RADIO- 



LARIA ....... 8 



SOME OF THE MICROSCOPIC FORAMINIFERA . . 8 



II. FORAMINIFERA FROM THE FLOOR OF THE SEA ^ .16 



A SECTION OF NUMMULITIC LIMESTONE . . .16 



III. THE DEVONSHIRE CUP CORAL . . . .24 



TYPES OF SOLITARY "MUSHROOM" AND "Cup" CORALS 24 



IV. A SPRAY OF REEF CORAL . . . -32 



V. A GROUP OF SHELLS . . . . .40 



A GROUP OF MARINE TUBE-BUILDING WORMS . . 40 



VI. THE ANT-LION LARVA . . . . 56 



STRANGE HOUSES . . . . . 56 



VII. TYPES OF TREE-WASP NESTS . . . .64 



THE MOLE CRICKET . . . 64 



VIII. A QUEEN TERMITE OR WHITE ANT AND AN ORDINARY 



WORKER TERMITE . . . ,. .104 



Two VERY REMARKABLE PSYCHE CATERPILLAR GARMENTS 104 



IX. THE GARDEN SPIDER AND TARANTULA . . .128 



X. NESTS OF AN AUSTRALIAN TRAP-DOOR SPIDER . . 144 



A TRAP-DOOR SPIDER'S NEST, WITH "WAFER" TYPE 



OF DOOR . ^ . . . 144 



XI. WORKERS IN SILK . . . . .156 



XII. THE NEST OF THE SONG THRUSH . . .192 



XIII. THE NEST OF THE LESSER REDPOLE . . . 200 



XIV. THE REED WARBLER'S NEST . . . .208 

 XV. THE WONDERFUL NEST OF THE TAILOR BIRD . .232 



XVI. THE NEST OF THE WEAVER BIRD . . . 240 



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