All this discussion recalls a passage in Pnin in which a physician's ear applied to a young Pnin's ailing chest ambulates about in the manner of a sea-creature of some sort. A wonderful image combining attributes of sound and motion. Perhaps I can find it. . .

Ah, fortunately for me here is the passage on page 22 (and not 192):

"Then Timofey's torso was bared, and to it Belochkin pressed the icy nudity of his ear and the sandpapery side of his head. Like the flat sole of some monopode, the ear ambulated all over Timofey's back and chest, gluing itself to this or that patch of skin and stomping on to the next."

Carolyn