Numbering Trees on Permanent Sample Plots with Rubber Stamps and Paint

This discussion of the numbering of trees on permanent sample plots is intended to aid those who contemplate installing such plots and to stimulate interest and thought in permanent sample plot technic. Although the authors are personally in favor of the rubber stamps and paint in lieu of metallic tags, they have attempted to present an unbiased discussion on the stamp and paint method. Comments are invited on this paper from those who have used either or both methods.