272 



On December 13, a fragment of lichen l^xl^ inches square slipped from the 

 bark of a May cherry, yielded 828 "wheel bearers," 10 "water eels," 25 "water 

 bear," and greater numbers of minute infusore^e; while on the same day, from a 

 minute greenish yellow lichen, estimated at ^ inch in diameter, there were taken 

 65 rotifers, 4 eels, 1 bear and 4 mites. 



So universal seems to be the distribution of some of these forms that the diffi- 

 culty is to find a spot where lodgment is possible not already occupied. 



On December 19, from the calyx of an apple that had been in a dry cellar for 

 a month 2 rotifers and 6 eels and other things were obtained, and 3 apples yielded 

 32 of these forms, fragments of insects and the wreckage of various filamentous 

 fungi, and innumerable unknown spores and bacteria. 



The writer of this paper has neither the fine microscopic appliances nor 

 works of reference necessary for a close study and determination of the most 

 minute forpis observed, and the names of a few in the list which follow are given 

 provisionally. We are, however, indebted to the distinguished microscopist and 

 widely known writer and author of several splendid books on microscopic sub- 

 jects. Dr. Alfred C. Stokes, of Trenton, New Jersey, for having examined material 

 sent and identified a dozen or more of the species in the list, which is as fol- 

 lows : 



Infusoria. 



Amphileptits, sp. ?. 



Heteromita, sp. ?. 



Tellina, sp. ?. 



Vortieella, sp. ?. 



Paramaecia, sp. ?. 



ChUodon, sp. ?. 



Free swimming Monads, several sp. ?. 



Rhizopods. 



Euglypha Cilliata. 

 Euglypha alveaiata. ?. 

 Arcdla vulgaris, 

 Anueba verrucosa. 

 Assulina feminulum. 

 Difflugia pyriformis. 

 Difflngia corana ?. 



