2i6 THE WALKS ABROAD OF 



" The Kolpodae also in infusions of grass or hemp- 

 seed that have been kept for a long time. 



" The species of Gonium in infusion of pears. 



"Kotifers and some Vorticellae in little shells in 

 fresh water, and about the remains of aquatic insects. 



" Monads in infusions of mushrooms. 



DIATOM, GREATLY MAGNIFIED. 



" Anguillulidae, paste or vinegar eels, in the sub- 

 stances denoted by their names. 



" But many of the species may be found in abun- 

 dance in pools of water. So that sometimes a single 

 drop of stagnant water is inhabited by quite a minia- 

 ture menagerie. 



