90 FOUND ON BEN LOMOND. 



rock and on the adjoining heather, we saw for the 

 first time the " mild effulgence" of the glow-worm. 

 No one exclaimed with Evans, " Twenty glow-worms 

 shall our lanthoms be ;" but the mind of each was 

 roused by a new and interesting object : we felt 

 pleased, cheered, invigorated, — pushed on with reno- 

 vated spirit, and about midnight reached the Uttle inn 

 of Rowardennan. 



Let me now transport you by my " so potent art," 

 from the shores of Loch Lomond to the bank of 

 some murmuring rivulet, where 



" He makes sweet music with the enamell'd stones, 

 Giving a gentle kiss to every sedge 

 He overtaketli in his pilgrimage ; " 



(Two Gentlemen of Verona, Act. 11. Sc. VII.) 



and while you stray along the margin, and watch 

 the streamlet, as 



" by many winding nooks he strays, 

 With willing sport to the wild ocean;" 



let me beg your attention to some of the insects 

 which sport upon the surface of the calm and quiet 

 pools where it reposes in its course, and ask you in 

 the words of Hamlet, 



"Dost know this water-fly?" 



You will find on a second glance that they are not 

 all of the same kind, and that some of them belong 



