A critical account of the drawings by Michel Angelo and Raffaello in the University Galleries, Oxford (1870)
Robinson, J. C · Oxford : Clarendon Press · leaf 155
inary studies for this celebrated picture are still extant (see the list in Passavant, vol. ii., p. 13); in addi- tion to the two drawings in this collection, to be described next in order, two others are preserved in this country, viz. a silver point study, in the British Museum, representing the… … rather than at the later one to which the two other studies properly belong.