I have witnessed marked improvement under the continued internal arsenical treatment of chronic bronchitis, for which cigarettes and inhalations are sometimes even more suitable than ordinary doses. Bretonneau and Trousseau have recorded good results, and the latter devised a simple cigarette, made with suitable paper, soaked in solution of arseniate of soda, or of potash (1 to 4 gr. in 20 gr. of water for twenty cigarettes). Four or five mouthfuls are inhaled several times daily; more often when the patient becomes accustomed to it. M. Papillaud recommends, in chronic bronchitis and emphysema, a combination of the drug with antimony (an arseniate of antimony), and considering the relations between these two substances, the recommendation is likely to prove very good (Gazette de Paris, 1865, No. 43, etc.).