DESCRIPTION OF PLATES. 149 
stricting process was resumed at the extremity of 
this neck, and the efforts of the two perfectly 
formed individuals were directed to the comple- 
tion of the divorce. This was not long delayed ; 
and when the last tie was severed, the two worldly 
creatures, apparently indifferent to the fact that 
they had been literally one flesh, set out upon in- 
dependent careers of sensuality, —their whole aim 
in life seemingly being to secure as large a share 
of food as they could possibly digest. Fortu- 
nately for them, the corpulence which results from 
high living had its remedy in the simple process 
already described, by which an overfed and un- 
wieldy body, instead of being reduced by absti- 
nence or “ anti-fat,’ could be remodelled to make 
two bodies of respectable dimensions. The whole 
process of division occupied something more than 
two hours. 
To return to our fageliate infusorium, Euglena viri- 
dis. Reproduction occurs not only by binary di- 
vision, but also by the formation of endogenous spores 
from the protoplasmic body-contents of encysted 
individuals. Conjugation or coalescence of two 
individuals sometimes occurs prior to encystment. 
The globular, spore-like bodies, when released by 
rupture of the cell-wall of the “ mother-cell,” ap- 
pear “as small green creeping amcebx, possess- 
ing at this early stage no trace of the flagellum, 
oral aperture, or pigment spot” (Kent). 
Having made the acquaintance of Lyglena, the 
reader will hardly be satisfied until he has ex- 
tended his knowledge of the Infusoria by direct 
