'6 



STUDIES ON FERMENTATION. 



carried on there, as well as to the power of endurance peculiar 

 to the germs, or the minute vegetative cells of these micro- 

 scopic plants — a tenacity of life which prevents them from losing 

 their reproductive powers, even after being dried up into dust. 

 But varied as are the formations represented in Fig. 12 — and 

 it will be observed that in IV. and VI. we have shown four 



6-3^ 



Y 





n 



^„ 4^ 



vr 



] \o cP ^ 



VI 



Fig. 12. 



distinct forms, marked a, a; b, b ; m, m ; n, n respectively — it 

 must not be supposed that they correspond necessarily to dis- 

 tinct species. From the ends of a compound organism like 

 those in No. Ill, a little spherical cell may detach itself and 

 then, by a process of budding, give rise to a series of other 



