T. C. Hilgard—Infusorial Circuit of Generations. 91 
in likeness of ‘‘ginned” cotton-seed. This feature is absolutely 
overlooked in most of the figures from Ehrenberg up to the 
present day; otherwise, the former's ‘ Paramecium Kolpoda”* 
would seem to represent a few of its onward developments. 
2 body now commences to disect, at first crosswise ; becom- 
Ing waisted, across the mouth, so that each half has a part of the 
old one. After assuming the form of an 8, they, after long 
struggling and toiling, bisect, often spinning out a long gelatin- 
ous thread (as of a limpid gum) and jerking each other most 
lustily ; but after disruption, they presently round off. 
In this condition, and the following, the bodies contain one 
larger and a great many smaller granular pellets,—“ yolks” or 
germinal specks,” which I have not distinctly seen discharged. 
But now the surface of the water becomes clouded with such 
aed amorphous, most delicate but cohesive pellicle (as of 
become hquid (like fusing lead), with an immense Int 
he of parts, and bodily dissolve into such cloud-molecules. 
* Abhandl. Berlin Acad. Wiss., 1834, Tab. IIT, fig. 3. 
