The following case of<i>aneurism arch of aorta and subclavian</i>, reported for me by Dr. Carmichael, M. H. S., occurred under my observation at the Providence Hospital, Marine Ward: Gordon Fitzhugh (negro), æt. 48 years; nativity, Virginia; admitted to Providence Hospital, Washington, D. C, April 6, 1888; died June 1, 1888. <i>History</i>.—He was first admitted to hospital on February 14, 1888, suffering from severe dyspnœa, coryza and acute laryngitis. Examination revealed the presence of a subclavian aneurism and regurgitant mitral disease of the heart. A murmur was also heard at the aortic cartilage, but it was partly obscured by the blowing sound of the aneurism. Under appropriate treatment the coryza and laryngitis subsided; while rest in the recumbent position and the administration of potassium iodide, in doses of 1.20 gm., relieved the distressing dyspnœa. He improved until March 2, 1888, when, at his own request, he was allowed to go