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already under way; in the others the first symptoms appeared between the eleventh and thirty-seventh day afterward. Maag has reported 3 cases developing after preventive injection of 423 patients. All agree that to abort an epidemic, isolation of the sick is necessary until they are free from bacilli. He adds in conclusion that the eannulas used to make the injec¬ tions sometimes become clogged with coagulated serum as tliey me boiled. This can be prevented by placing the eannulas in a solutiondoi:10.1001/jama.1909.02540430068026 fatcat:y6kyrw2rwjfw3gpikvktfvrtdq