Gloria and Jorge Abad from the Department of Plant Pathology, North Carolina State University, donated historic references on late blight dating back to 1845 to GILB. They will be available through the library of the International Potato Center (CIP) [http://www.cipotato.org/library/cat-internet.htm]. Many of these references are cited in the article they coauthored entitled Another look at the origin of late blight of potatoes, tomatoes and pear melon in the Andes of South America, Plant Disease 81:682-688 (1997).