The book has no illustrations or index. It may have numerous typos or missing text. However, purchasers can download a free scanned copy of the original rare book from the publisher's website (GeneralBooksClub.com). You can also preview excerpts of the book there. Purchasers are also entitled to a free trial membership in the General Books Club where they can select from more than a million books without charge. Subtitle: Conducted by United States Grain Corporation in Cooperation With Bureau of Chemistry, United States Department of Agriculture ... April 22-24, 1920; Original Publisher: New York; Publication date: 1920; Subjects: Dust explosions; Grain elevators; Grain trade; Fire prevention; Dust; Explosions; Business