CHAP. xiv. THE CADDIS-WORM. 21S 



lower end, where a stream goes off to drive the mill of 

 Mey. Its eastern shore was strewn with sand, and not 

 long ago, the mimic waves had dashed across it, leaving, 

 in the circles of its upper reaches, straws, sticks, aiid 

 bits of peat. Stooping down on my knees to scrutinise 

 the sands, I was surprised to find innumerable multi- 

 tudes of Limnsea and Cyclas, the whole mingled with 

 the Old Houses of a small Caddis-worm.* The sight 

 was impressive. Here was a miniature representation 

 of geologic fact. Thousands of organic existences sud- 

 denly terminating their little span of life, through no 

 fault of their own, but by the seeming accident of a 

 sudden shower!" 



* Caddi#-worm. or Cure-twrm, 



