His sketches in Spain, lithographed by himself, are very valuable. Get
them, if you can, and also some engravings (about eight or ten, I think,
altogether) of wild beasts, executed by his own hand a long time ago;
they are very precious in every way. The series of the "Alhambra" is
rather slight, and few of the subjects are lithographed by himself;
still it is well worth having.
But let _no_ lithographic work come into the house, if you can help it,
nor even look at any, except Prout's, and those sketches of Lewis's.