Wolfian Bottles, or Woulfe's Bottles, bottles like that in the figure, named from the London chemist Peter Woulfe (1727–1806). They are used for the purpose of purifying gases, or of dissolving them in suitable solvents. The gas is passed in at the tube, a, which dips below the surface of the liquid, and as it bubbles through is either dissolved or passes on to a second bottle by means of the tube, b. The neck through which c passes may be fitted either with a cork or with a tube as shown, admitting air so as to prevent undue rarefaction.
