Fig. 15.—Abscesses in two clusters caused by S. aureus in upper part of right upper lobe; confluent lobular consolidation in lower part of lobe. Autopsy 333. ] [Illustration: Fig. 16.—Abscesses in cluster caused by S. aureus at apex of right upper lobe. Autopsy 322. ] =Autopsy 322.=—The patient was admitted with influenza eight days before death; signs of pneumonia appeared two days later, and on the following day Pneumococcus IV was obtained from the sputum. At autopsy there were bronchopneumonia with lobar consolidation, abscesses clustered about a bronchus in the right upper lobe and purulent bronchitis. The blood was sterile; S. aureus was obtained from the consolidated part of the left lung; S. aureus and Pneumococcus III from the abscesses of the right lung. Microscopic examination of sections of abscesses showed the presence of Gram-staining cocci in staphylococcus-like colonies, surrounded by necrotic material and polynuclear leucocytes; Gram-negative bacilli resembling B. influenzæ were seen. (See Fig. 16.) =Autopsy 333.=—The onset of influenza was fifteen days before death; a diagnosis of pneumonia was made seven days before death. At autopsy there were confluent bronchopneumonia, clustered abscesses in the right lung and purulent bronchitis (no pleurisy). The blood contained Pneumococcus II atypical. S. aureus and Pneumococcus II atypical were obtained from the abscesses; S. hemolyticus, from the consolidated left lung; S. aureus, B. influenzæ and a few hemolytic streptococci, from the bronchus. (See Fig. 15.) =Autopsy 370.=—The patient was admitted seventeen days before death and signs of pneumonia were noted three days after admission. At autopsy there were lobular and confluent bronchopneumonia and small abscesses clustered about bronchi and situated within the gray consolidated lung; purulent bronchitis and patches of atelectasis, with distention of the lungs, so that they failed to collapse on removal. No growth was obtained from the heart’s blood; S. aureus in pure culture was obtained from the abscesses of the right lung; S. aureus, Pneumococcus IV and B. influenzæ were obtained from a small bronchus on the left side.