In a letter dated 22 June 1946, Erwin Panofsky wrote to his former student and fellow art historian William S. Heckscher. A fellow alumnus of the Kulturwissenschaftliche Bibliothek Warburg, Heckscher was then teaching courses in German language and English literature at the University of Manitoba as the tail end of a wartime interlude between academic appointments in the history of art. Panofsky’s letter reads thus:

Concerning Baroque as a style, I can only refer your friend to a forthcoming article by [Wolfgang] Stechow (Oberlin College) but I do not know whether he already has proof prints and would be willing to give them avant la lettre. Another impending article by [Ulrich] Middeldorf (Chicago University) is concerned with the vicissitudes of the term and will certainly be of interest but has not appeared either so far as I know. In the meantime, I am sending along an unpretentious lecture of my own fabrication which you may pass on to Mr. Daniells if you are sure that he will return it. I may want to use it again if occasion offers. It is not very good and full of typographical and other errors but he may get some ideas, if only by way of opposition.1