176 



VIGNETTES FROM NATURE, 



Scotch pools, we should probably find that 

 they all agreed in certain broad characteristics 

 which really re-called the original ancestor 

 more fully than the lowland species recalls 

 him. Only these broad characteristics would 

 be largely masked by the special adaptation 

 of the Loch S tennis trout to the pools of 

 Orkney, and of the Llyn Gwernant species to 

 this particular petty Welsh tarn. 



