Dear Ross, I know that Dr. H. Hagemann of the Univ. of Hohenheim in Stuttgart Germany is in the middle of a major work on why emigrated and what happened thereafter. I read a short article on one form historian of economic thought that I studied with in collge-- Josef Soudek (Czech). Hagemann's work is first rate. I hope this is helpful. How far from publication? I have no idea. L. Moss