MAR 23 1986 A Rice oF THE PRESS March 25, 1986 Dr. Joshua Lederberg, President Dear Josh: Thank you for that beautifully written Foreword. That in itself has made all the work on the book worthwhile. Thank you also for the Notes. An index of organisms phyletically arranged would certainly be useful and I intend to provide this. I also plan to consider a glossary of the more specialized parasitological terms. This could be helpful to the non-parasitologist. I have deleted the sentence about export of protein from E. coli since this indeed is not relevant to the main argument. Yours sincerely, Repl peer of \ie aa \e William Trager J? Professor of Parasitology