To the Editor
By an error, "ethyl acetate" appears in place of the correct name, "ethyl aceto-acetate" in my paper on "The Acidosis Index," which appeared in The Archives of Internal Medicine (March, 1911, p. 369). This unfortunate mistake, which escaped my attention both in the typewritten manuscript and in the proofs, invalidates the whole paper. The sentence should read as follows:The "standard solution" consists of ethyl aceto-acetate, 1 c.c.; alcohol 25 c.c.; and distilled water to 1,000 c.c.