Erratum
In the article by Viktors Kalnins, "The Effect of X-Ray Irradiation Upon the Mandibles of Guinea Pigs Treated With Large and Small Doses of Ascorbic Acid," which appeared on page 177 of the April issue of the JOURNAL, the second sentence in paragraph 3 read, "Furthermore, physiologic pharmacodynamic doses of vitamin C, exceeding several times the dose of ascorbic acid, act as detoxicants." This sentence should have been, "Furthermore, pharmacodynamic doses of Vitamin C exceeding several times physiologic dose of ascorbic acid, . . ."