Marvels of Pond-Life. 



05 



brown. It has been observed to increase by transverse 

 self-division, and has two orifices, one at each end, for 

 receiving food and ejecting the remains. It often 

 requires some little trouble to get a good view of the 

 cilia, which are arranged in transverse and longitudinal 

 rows. A power of one hundred and fifty linear is 

 convenient for viewing it in motion, but when quiet 

 under pressure, one of five or six hundred may be used 

 with advantage. 



Coleps hirtus. 



Among the rubbish at the bottom of the bottle, in 

 which the coleps was found, was a minute dead Rotifer, 

 the flesh of which was fast disappearing, but upon being 

 examined with a power of nine hundred and sixty 

 diameters, it was observed to swarm with extremely 

 minute vibriones, the largest only appearing under that 

 immense magnification like chains of bluish-green 

 globules, not bigger than the heads of minikin pins, 

 while the smallest were known by a worm-like wrig- 

 gling, although their structure could not be defined. 



5 



