Errata

In the paper by O. Backer Dirks, K. C. Winkler, and J. Van Aken, "A Reproducible Method for Caries Evaluation. III. Test in a Therapeutic Experiment With an Ammoniated Dentifrice" (p. 18), the graphs were misplaced in relation to the legends. The graph with the legend for Fig. 4 should be with the legend for Fig. 1, the graph with the legend for Fig. 1 should be with the legend for Fig. 2, the graph with the legend for Fig. 2 should be with the legend for Fig. 3, and the graph with the legend for Fig. 3 should be with the legend for Fig. 4.