Purgative Ptisan.

‘Take three leaves of Aristotle’s logic in Greek, two leaves of one of the most crabbed theological treatises; as for instance, that of the subtile Scotus; four of Paracelsus, one of Avicenna; six of Averroes; three of Porphyry; as many of Plotinus, as many of Jamblicus. Mix them all together, and let them stand for four-and-twenty hours; then take four doses of them at a time.’