CLASSES OF ARTICULATED ANIMALS. 5 



of the latter. With regard to the Insects, however, 

 the case is very different, and it will be quite impos- 

 sible to render our sketch of the History of British 

 Insects intelligible to the student, without a short 

 account of the general phenomena of insect life. 

 This will be given, as briefly as possible, in the two 

 following chapters. 



