STUDYING NATURE. 147 



There are some birds which frequent special 

 trees, and are named after them, such as the 

 hawfinch, the whinchat, which is found on its 

 favourite furze-bushes (called whins in Scotland), 

 the pine and fir grosbeak, and the nuthatch. The 

 student should know something of these birds and 

 their habits, as being linked with the trees they 

 frequent. 



There are innumerable insects also found upon 

 the leaves and stems of trees. It has been calcu- 

 lated that about t\vo thousand different species of 

 caterpillars and larvae of vatious kinds prey upon 

 the oak alone. 



We thus see vistas which open out before the 

 young student, any one of which, when followed 

 up with thoughtful perseverance, will add immensely 

 to the pleasure of walks abroad and quiet hours at 

 home. 



As this chapter aims to be a suggestive one, I 

 would mention the possibility of making a dried 

 collection of the trees of Scripture. This may seem 

 at first sight very difficult of attainment, but we 

 often hear of friends going abroad (even if we 

 cannot go ourselves), and a request to gather and 



