CONTENTS. 



CHAPTER I. 



Introdi'ction. 



instruction dprivable from common things 

 Extraordiiiai)' niinibers and varieties of Insects 

 Can be studied in every situation 

 Anecdotes .... 

 Cabinets useful but not indispensable . 

 Study of Insects does not narrow tiie mind 

 Injuries and Benefits caused by Insects 

 Use of names in Natural History 

 Study of Insects fascinating to youth . 

 Anecdote of a little girl 

 Beauty of Insects 



Varieties in the economy of Insects , 

 States of Insects .... 



Injects produced from eggs . 

 Larva, Caterpillar, Grub, Maggot 

 Pupa, Chrysalis, Aurelia, Nymph . 

 Imago, perfect lusect . 



CHAPTER 11. 

 Structures for protecting Eggs 



Eggs of Insects can bear great degrees of heat and cold 

 Bees compared to our mechanics . , 



Mason- Wasps ..... 



Curious proceedings of one at Lee . 

 Her caution Outwitted by a Fly 

 Structures of another IVlason-VV'asp . 

 Her storing of live Caterpillars 

 Mason-Bees ..... 



Nest of one on the wall of Greenwich Park 

 Clay-mine of Mason Bees at Lee 

 Estimate of their labours 

 Wall-Mason-Bees of France 



Proceedings of the two-horned Mason Bee at Lee 

 Structures of Mason Bees 

 Their restless di.>'positioti 

 Mining-Bees ..... 



Their different proceedings in Britain and in France 

 CHAPTER III. 

 Carpenter-Bees .... 

 Methods of working 

 History of one at Lee 

 Violet Carpenter-Bee of France . 

 Compared with our joiners 

 Elder and Bramble Carpenter-Bees . 



