LIST OF ILLUSTRATIONS 



FRONTISPIECE 



SECTIONS OF PUSS-MOTH COCOON -facing 

 COCOON AND SECTION (EMPEROR-MOTH) „ 

 RHYSSA PERSUASORIA DEPOSITING 



OVUM IN LARVA OF SIREX GIGAS - 

 SIREX GIGAS 



NEST OF WILLOW-WARBLER 

 NEST OF LONG-TAILED TIT 

 NEST OF GOLDEN-CRESTED REGULUS 

 NEST OF BLACKBIRD 

 NEST OF HEDGE-SPARROW 

 EGG OF GUILLEMOT (URIA TROILE) 

 LARVAE OF SAW-FLY ON POPLAR LEAF- 

 NEST OF LESSER WHITETHROAT 

 WING OF BIRD - 

 BOMBYLIUS (DIPTEROUS FLY) 

 NEST OF THRUSH 

 HEAD OF PHEASANT 

 HEAD OF WOODCOCK 



i6 

 i6 



22 

 22 

 41 

 44 



45 



48 



50 

 52 

 52 

 70 



88 



88 



116 



122 



122 



