NATURAL HISTORY. 



49 



may run off. It is always placed, too, so as 

 to face the north or the west, and I suppose it 

 is because the wasp knows that it is in more 

 danger of rain from the south and the east. 

 Here is a nest of this kind." 



Wasp's Cells attached to a branch. 



" Ah, Uncle Philip ! this must be a kind 

 of lazy wasp. It does not choose to take the 

 trouble to cover up the house, and so it hangs 

 it slanting, to make the rain run off." 



" It may be so, boys ; but I think that in 

 making this wasp lazy, you make it a very 

 sensible wasp ; else how should it know that 



