1Y2 BOULDER REVERIES. 



the surface and the bottom, or else nose in the 

 silt and mud. At short intervals one or another 

 of them turns sideways and allows the sunlight 

 to glint from the silvery scales. It is upon such 

 schools as this that, in the larger streams and 

 lakes, the black bass and the goggle-eye delight 

 to dart, and with open, funnel-like jaws, scoop 

 up and swallow a score or more at a single gulp. 

 Ever on the alert, these little fishes are fright- 

 ened at the smallest shadow that falls athwart 

 their field of vision, or at the least ripple which 

 might betoken the onrushing of one of their 

 larger cannibalistic cousins. When either 

 shadow or ripple disturbs their senses they dart 

 a few feet away and again huddle close and nose 

 the silt for sustenance. 



A large brown water spider rests on a half 

 submerged sycamore leaf which is moored to the 

 shore by the base of the floating twig to which it 

 is attached. He rests and waits, motionless for 

 the fifteen minutes which have elapsed since 

 first he came under my notice. What waits he 

 there? Some gyrinid, or floating mosquito 

 larva? Some gnat or fly which may come 



