Erratum

In the article by Harold S. Fleming entitled "Effect of Certain Concentrations of Fluoride on Enamel and Dentin as Formed in Transplants of Tooth Germs and Related Studies" which appeared in the August issue of the JOURNAL, the first line of the last paragraph on page 470 should begin, "Ten dba mice used 16 ounces or approximately 500 c.c. of water . . ." instead of 1,250 c.c. On page 482 the ninth line should end, "fluoride ion when" instead of "fluoride on ion when." The thirteenth and fourteenth lines of paragraph 4 on the same page should read, ". . . and many of the step-wise actions . . ." instead of "step-wise of the many actions."