Boyal Microseojoical Soeietij. 249 



the nuclei are approximate. Sarcode and nuclei melt into each 

 other; the form becomes free-swimming and triangular in shape — 

 rests — loses its flagella; becomes clear and distended: then bursts 

 at the angles, pouring out indescribably minute granules, from 

 which myriads of new forms arise and repeat the cycle. 



We have not burdened the reader with our failures and disap- 

 pointments, but have simply tabulated results. 



We have made careful researches on the effects of temperature 

 on the adults and the germs respectively ; we think the results of 

 considerable interest : but we can best give them when we have 

 described the other forms, giving the results together. 



