PT - JOURNAL ARTICLE AU - EPSTEIN, SAMUEL TI - NATIONAL ACADEMY OF SCIENCES: Abstracts of Papers Presented at the Autumn Meeting, November 9-11, 1953Massachusetts Institute of Technology, Cambridge, Massachusetts AID - 10.1126/science.118.3077.756-a DP - 1953 Dec 18 TA - Science PG - 756--756 VI - 118 IP - 3077 4099 - http://science.sciencemag.org/content/118/3077/756.2.short 4100 - http://science.sciencemag.org/content/118/3077/756.2.full SO - Science1953 Dec 18; 118 AB - In the abstract of the paper, "The Direct Observation of Hapten-Antibody Equilibria" presented before the National Academy of Sciences, which was published in the Nov. 13th issue of SCIENCE, p. 570, there isan error due to a miscalculation. A value of 5.5 kcal isgiven for the free energy of formation (per mole) of ahapten-antibody bond. This value should be 7.6 kcal.