230. _Zeno._ The founder of the sect of Stoics, and hence supposedly not
stirred by "naked High Art."
232. _Some clay-cold vile Carlino._ Commercial dealers in art are
unmoved by true beauty, but they go into ecstasies over uninspired work
like that of Carlino. (Carlo Dólci, 1616-1686.)
236. _A certain precious little tablet._ Mr. Browning wrote to Professor
Corson that this was a lost "Last Supper" praised by Vasari. The stanza
in which this line occurs explains ll. 17-24.