Note 44 — Chapter III · On the Origin of Ferments properly so called.

We may remind the reader that in 1862, in our Mémoire sur les Générations dites spontanées, we applied the expression of torula to all the little cellular plants of spontaneous growth, excepting mycelium, propagated by budding, after the manner of the ferment of beer. At the same time, stress was laid upon the frequent occurrence of their germs, especially in our laboratory, where studies on fermentation were, even then, carried on. Plate III. represents two of these ferments.