Through the kind permission of Mr. H. B. Walters, I am enabled to publish a Caeretan hydria, whose whereabouts has for many years been unknown and of which the only previous illustration is the drawing in Endt, Beiträge zur Ionischen Vasenmalerei, figs. 7, 8. This is the hydria with a young man in a chariot, pursued by a griffin, on the front, and two pairs of satyr and maenad, on the back: it is now in the British Museum, and bears the inventory number 1923, 4–19, 1. Before proceeding with a more detailed description of the vase, I give a list of the group, that of Dümmler (Röm. Mitt. iii, p. 166 f.), to which nos. 15–18 were added by Pottier (B.C.H. 1892, p. 254 ff.), no. 19 by Endt (op. cit., p. 1), no. 20 by Loeschcke (Ath. Mitt. xix, p. 516, n. 1.), no. 21 by Furtwängler in the text to F.R. Pl. 51. The bibliography is only intended to give the handiest illustrations: for a full bibliography and an admirable account of the group as a whole, see E. R. Price, East Greek Pottery (C.V.A. Classification, 13).