Buschor, by his Crocodile, has brought order into the study of Attic plastic vases, but even after Buschor much remains to be done. I propose to examine and classify the Attic vases in the form of human heads. I shall not discuss, or not fully, either the vases in the form of complete human figures —the Dionysos in London, the satyrs in Saraievo and Taranto; or the sphinxes; or the groups—mounted Amazon, blackamoor and cayman, pygmy and dead crane; or the small and usually petty plastic adjuncts to hydriai, oinochoai, kyathoi, epinetra; or the head-vases and bust-vases of the fourth century, which are best studied in connexion with the other plastic vases of the same period.
Some head-vases are oil- or perfume-pots, others drinking-vessels, others jugs. The perfume-pots have the same mouth, neck, and handles as a round aryballos: fourth-century vases borrow this part from the squat lekythos, but with these we are not concerned. The drinking-vessels, whether two-handled or single-handled, have a kantharos mouth: I shall keep the word kantharos for the two-handled sort; the single-handled kantharos I shall call a mug. The jugs nearly always have the same mouth as the kind of vase which I have called oinochoe shape I: but three other kinds of mouth occur as exceptions, and will be noted each in its place.