Erratum.
In "Effect of Rutin on Anaphylactic and Histamine Shock" by R. J. Raiman, E. R. Later, and H. Necheles (Science, October 17, p. 368), the first sentence of the last paragraph should read as follows: "Another explanation for the protective effect of rutin may be that it prevents the liberation of endogenous histamine, perhaps by unknown factors other than those which decrease capillary permeability."