Note 66 — Chapter IV · The Growth of Different Organisms in a State of Purity: Their Autonomy.[49]
Frank Faulkner translation
It is a very easy matter to study the liquids and growths in our flasks during the course of a single experiment. We take out the glass stopper that closes the india-rubber tube on the straight-neck, and, by means of a long rod or a glass tube previously passed through the flame, take up a quantity, which we draw out immediately for microscopical examination. We then replace the glass stopper, taking care to pass it through the flame before doing so, to burn up any organic particles of dust that it may have picked up from the table on which we laid it.