88 



Marvels of Pond-Life. 



no large plants wer^ growing, and which did not even 

 exhibit the little disks of duckweed that are common 

 to such situations. There was, however, on the surface, 

 in parts, an exceedingly fine scum of pale yellow green, 

 and this, armed with a teaspoon, we proceeded to 

 attack. By careful skimming, a small bottle was half- 

 filled with minute organic particles, which were likely 



200 



Cryptomonad — Euglena. 



to be interesting in themselves, and pretty sure to be 

 the food for something else. A small drop was placed 

 on a tablet of the live-box, flattened out by the applica- 

 tion of the cover, and viewed with a power of two 

 hundred linear, which disclosed swarms of brilliant 

 green globes, amongst which were a good sprinkle of 

 minute creatures, like the Euglence already described. 



