24 T. C. Hilgard—Infusorial Circuit of Generations. 
As for its sable multiplications, when a Vorticella gets 
“sick,” for want of air or food (as when kept between glass- 
plates held sas and glued round about, or cemented, to pre- 
vent evaporation), the weeye contracts to a perfect globe, with 
a ig germinal are 6. - oF nucleus t in the middle; the 
densely punctuated cloud, ru dp like a cumulus ; its tips mostly 
warty as with (dotted) i awtercies a sort of primordial fram 
boésia.” It is to this form that I wish to call 
tion, sincé it presents the most minute phase of indvichaal ant- 
mate life visible at represent under the known powers of 
the aioroeOhe: being the ultimate retrograde development- 
phase, as well as the first manifestation, common to all such 
soft ora sarcode bodies, — the ‘“ Vorticellan” to the 
most bulky “ Paramecian” forms. And from each little dot 
in these “clouds of life” a ani Vorticella can be seen — 
to develop! It is here, indeed, at this first visible advent or — 
exordium of animate life, and the resurrection of millions of — 
germs through the spontaneous dissolution of a single one, that 
the last nubecular microscopic perceptions closely resemble the 
last nebular telescopic as well as the theoretic ones of Laplace’s 
cosmogony. ; 4 
For the —— = = col such often repeated forms of | retro- 
rade self-c a germin 
Such likewise occur in a ‘very closely analogous mae in ae 
self-maceration (of the engulfed pencil-beads and the enlarged 
“oidium”-joints) of the yeast or ‘“‘zymotic” fungus. The 
| ti | 
exists into bos iebees. Of the black or i ae nebula-form 
of the zymotic or yeast-fungus I have are aca in the 
St. Louis Medical Reporter, Jan. 1st, 1868, (Zymotic Condition, 
etc.) and Proc. A. A. A. S., 1870, e¢ anée. Neither the animal 
molecules nor the (coated) "& Cacte acteria” join into file, as do the 
fermentic — ae naked. 
The oh ee opportunity of witnessing 
