Genetics. In the article “Loss of the maternal H19 gene induces changes in Igf2 methylation in both cis and trans” by T. Forné, J. Oswald, W. Dean, J. R. Saam, B. Bailleul, L. Dandolo, S. M. Tilghman, J. Walter, and W. Reik, which appeared in number 19, September 16, 1997, of Proc. Natl. Acad. Sci. USA (94, 10243–10248), the authors request that the following correction to the acknowledgments be noted. The last line, which states that J. Oswald was supported by Deutsche Forschungsgemeinschaft (Wa1029/1-1), was completely omitted.