The referee in submitting this report to the Council recommended that Ziratol be held in conflict with Rule 1 (secrecy of composition) and Rule 6 (unwarranted and exaggerated claims). After the report had been submitted, it was found that a new advertising circular, accompanying a trade package, no longer contained the claim that “Ziratol is ten times more efficient than Carbolic Acid.” The older circular made the following statement: “1. Strong Activity.--Compared with the bactericidal action of Carbolic Acid by the method of the Hygienic Laboratory of the Marine Hospital Service, ZIRATOL has the Carbolic Acid Coefficient of more than TEN, that is, ZIRATOL is TEN times more efficient than Carbolic Acid,--a strength unapproached by any other of its class. ZIRATOL in dilution of 1:1400 kills the Typhoid Bacillus in 2-1/2 minutes, thus proving that it is strongly active even in very weak solutions.” The new advertising circular reads: “1. Strong Activity--Extensive bacteriological investigations on many pathogenic organisms, conducted in the Lederle Laboratories of New York, prove conclusively the high bactericidal value of Ziratol in extremely dilute solutions. (A copy of the complete report will be mailed upon request.)” In response to a request, the Bristol-Myers Company sent a copy of the bacteriologic investigations of Ziratol, said to have been made by the Lederle Laboratories. The organisms employed for these tests were _Staphylococcus aureus_, _Staphylococcus albus_, _Streptococcus_, Green pus bacillus, _B. coli_, and saliva. No tests are given with the typhoid bacillus. The conclusion is reached that “in all the tests the solutions of Ziratol have several times greater killing efficiency than those of phenol.” The “coefficients” or comparative values which can be calculated from the results after exposure of 15 minutes to the disinfectants range from 2.0 to 4.0. This is in substantial accord with the referee’s findings as regards the phenol-coefficient with _B. typhosus_ as the test object. While the new advertising circular avoids the former claim that Ziratol is ten times more efficient than carbolic acid, in germicidal value, it still makes the unwarranted claims that Ziratol is the “universal disinfectant.” The Council declared Ziratol inadmissible to New and Nonofficial Remedies (1) because its composition is secret (Rule 1); (2) because the phenol coefficient, determined according to the method of the Hygienic Laboratory, U. S. P. H. S., is not stated on the label (Rule 2); (3) because the label and the circular accompanying the trade package advises its use by the public as a “vaginal douche” (Rule 3); and (4) because the claim that Ziratol is the “universal disinfectant” is exaggerated and unwarranted (Rule 6).