79 great difficulty in making the opening into the trachea; (Mr. Liston told me it was the only occasion in which he had used the bone forceps for that purpose;) also, the presence of a foreign body in the bronchus. How long the fragment of necrosed ossified cartilage had been there it is impossible to say, for I could trace no symptom to guide me; and although the peculiar smell of the expectoration has elicited from Mr. Liston the remark of its similarity to that caused by the presence of a

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... reign body in the air-tubes, and the dulness on percussion, and signs of pneumonia at the top of the left lung, proved that serious mischief was going oil, yet we had no reason to suspect the presence of a foreign body, much less that a portion of necrosed ossified cartilage from the larynx had passed down into the bronchial tube. The presence of the small piece in the left bronchus at the post-mortem examination leaves little doubt that the part coughed up after the last operation had been there also. In the treatment of the case, the greatest relief was found from keeping a constant supply of steam in different parts of the room, which answered the double purpose of moistening the dry warm air previous to entering the tube, and softening the thick muco-purulent expectoration that collected in and about it. About a week before he died, he tried a tube contrived by Mr. Liston, with a half-valve at the orifice, so arranged as to admit a large quantity of air on inspiration, but only half that quantity on expiration: it was hoped that the air, being -compelled to pass through the smaller orifice, would have expelled the sputa with less effort to the patient, but the disease in the lungs had too far advanced for this tube to be of any service. Mr. Liston had tried this plan with another patient he was attending at the same time, with great advan--tage and comfort. Windsor-terrace, Maida-hill.