Notwithstanding the small number of autopsies, the figures in Table XLIX, showing the incidence of pneumococci, streptococci, staphylococci and B. influenzæ, are cited so that they may be compared with the corresponding figures for the usual type of streptococcus abscess (p. 203). The incidence of hemolytic streptococci is relatively low, whereas that of staphylococci approximates 100 per cent. S. aureus was present in great number in the lung of Autopsies 322 and 333 and in pure culture in the abscess of Autopsy 370. Microscopic examination of sections from the abscesses which have been described, demonstrated the presence of Gram-staining cocci in characteristic staphylococcus-like clumps within the exudate of the abscesses; scattered chains of streptococci were not found. In those instances (Autopsies 280 and 286) in which cultures failed to demonstrate staphylococci, microscopic examination demonstrated staphylococcus-like clumps of bacteria within the abscess cavity. Cultures were usually made from the consolidated lung near the abscess where the pleural surface could be seared, rather than from the pus, so that in some instances the microorganism has doubtless escaped detection although present. In association with the multiple abscesses which have been described, injury to the bronchi and bronchopneumonia have been invariably present. Purulent bronchitis has been present in all instances of this lesion; in 2 instances there has been dilatation of the bronchi, and in 1 instance in which the onset of influenza was twenty-nine days before death, there has been advanced bronchiectasis.