History of Caricature and Grotesque in Literature and Art by Thomas Wright, 1865
This volume is new to me, it has an interesting table of contents, there is a digitized version at Archive.org, but so poorly done it renders it as good as useless.
Jahsonic
Aantekeningen van Leonardo, hoofddoodgraver van Dodenstad.
This looks an interesting book, new to me also.
Looking on Abe I see that it was reprinted in America in 1968, you can get copies for less than 10£.
I spent a couple of hours wikifying the table of contents, and it seems very interesting indeed. I may pick it up one day; its perspective being almost 150 years old gives it an entirely different focus.
There is a new paperback, published 2005 by Adamant Media Corporation, £12.74 on Amazon, I am going to get a copy.
I notice that it is in the bibliography of a book that I bought yesterday – “Dreaming of Cockaigne” by Herman Pleij.