80 OUT OF DOORS. 



too, abound, and I was specially pleased to find several 

 specimens of the Planaria, that curious flat-bodied 

 annelid which is worthy of much examination. 



In this and the preceding paper I have endeavoured 

 to show the wonderful amount of interest which lies 

 hidden in every object around us. Those who take up 

 any branch of natural history pass straightway into a 

 new world, and the more thoroughly do they enter into 

 it the less do they complain of the narrowness of their 

 field. I have intentionally taken two very narrow 

 fields, namely, the living beings that are found ' Under 

 the Bark,' and the creatures that live beneath the waters 

 of a tiny pond measuring only three yards by four, 

 And, so far from exhausting either the bark or the 

 pond, I have given but the slightest and most sketchy 

 account of both, choosing a few of the most conspicuous 

 objects as examples of the rest, and leaving un described 

 and even unmentioned hundreds of others every whit 

 as interesting, but for which our limited space is in- 

 sufficient. 



