Note 76 — Chapter IV · The Growth of Different Organisms in a State of Purity: Their Autonomy.[49]

We found, after the lapse of another year, in December, 1873, that the ferment of the mucor in the test glass might still be easily revived; that it was able to propagate, both in the mycelium and in the cellular form, in wort, and that it might produce a fermentation, more or less active, according to the condition of aeration; in short, that it was capable of producing all the characteristic phenomena described. By means of the method of cultivation that we employ, our study, which was continued for years, was pursued without the least fear of any foreign fungoid growths being introduced into the vessels, although they remained constantly open, and the air in them was being perpetually renewed by the action of diffusion and variations of temperature. In 1875 nothing remained alive in our flask, and further revival became impossible.