Any book of the present sort requires a large number of sources, and I sought as many as I could. First, there were those folks who took the time to sit and talk with me. Without exception, they all opened up and answered every question I asked. But far more than this, they helped lead me into areas that I did not know about or might not have otherwise probed. Second, I want to thank them for all of the reprints they generously provided so that I could ‘bone up’ on their areas of interest before the interview was consummated. Third, there are several books that describe the fascinating history of parasitology. I am confident I have given appropriate credit for all that I used as I went along. There are, however, several special authors and books that I want to emphasize and from which I drew invaluable information. These of course include Bob Desowitz and all of his popular tomes, but especially those that dealt with the history of malaria and its treatment, primarily The Malaria Capers. Mark Honigsbaum's The Fever Trail was an extraordinary account of the history of quinine and the cinchona tree from which this herbal remedy comes. It should be read by anyone with an interest in malaria. I also read a large number of general historical accounts dealing with our discipline. The best was A History of Human Helminthology, by D. I. Grove.