by Ted & David Bacyk and Tom Rowe. Hardbound, 312 pages, 8" x 11". In this continuing volume, the authors cover the smaller companies, the agents and the retailers that were such an important part of the gunpowder trade. Again, the majority of the examples shown are from the Bacyk collection but another major source has been found in the Hagley Museum & Library which is conected to Dupont and offers many extremely rare examples. Samples from a few individual collectors are also included. Large photos, mostly in color show minute details of cans and labels. An invaluable reference for the powder can collector.