About three years ago I ended a long search by proving to my satisfaction, and perhaps to the satisfaction of others, that cardiospasm is due to fibrosis of the terminal portion of the esophagus caused by infection from contiguous organs. I wish now to give instances of infection of the esophagus itself, in other words, of infection from within. I shall show that infection of the esophagus may occur in acute disease; for example, in pneumonia. These two subjects are quite academic and smell of the laboratory. They constitute the first part of the paper. The concluding portion deals with the fluoroscopic examination of the esophagus and the passage of the barium bag. This I shall make as practical as I can. In the discussion of infection of the esophagus, I shall take up the question of the glands as the favorite point of entrance.
THE MATERIAL
The material for