Ward 1 was opened on September 24. From that date until October 2 no cubicles were in use and few precautions were taken against transfer of infection. On October 2 cubicles were installed and ordinary precautions to prevent transfer of infection were instituted. On October 6 the ward was closed to further admissions. The data presented in Table XX are divided into two periods, because on September 29 and 30, 4 patients with streptococcus pneumonia were admitted to the ward. TABLE XX PNEUMONIA IN WARD 1 ═══════╤════════╤════════╤═════════════╤═════════════════════════════════════ │AVERAGE │ NUMBER │TOTAL DEATHS │ CULTURES AT AUTOPSY │ NUMBER │ OF │ AMONG │ │ OF │PATIENTS│ PATIENTS │ │PATIENTS│ADMITTED│ ADMITTED │ │IN WARD │ │ DURING THE │ │ │ │CORRESPONDING│ │ │ │ PERIOD │ ───────┼────────┼────────┼──────┬──────┼────────────┬───────────┬──────────── „ │ „ │ „ │NUMBER│ PER │PNEUMOCOCCUS│ S. │UNDETERMINED │ │ │ │ CENT │ │HEMOLYTICUS│(NO AUTOPSY) ───────┼────────┼────────┼──────┼──────┼────────────┼───────────┼──────────── Sept. │ 35.8│ 34│ 11│ 32.3│ 5│ 3│ 3 24–29 │ │ │ │ │ │ │ Sept. │ 55.3│ 40│ 24│ 60.0│ 6│ 14│ 4 30–Oct.│ │ │ │ │ │ │ 5 │ │ │ │ │ │ │ ───────┴────────┴────────┴──────┴──────┴────────────┴───────────┴──────────── During the first period from September 24 to 29 the ward contained an average of 35.8 patients, being only moderately crowded; 34 cases of pneumonia were admitted, of whom 11 died, a mortality of 32.3 per cent. It is noteworthy that deaths among this group which occurred prior to September 30 were due to pneumococcus infection with one exception, a patient entering the ward on September 26 and dying the following day. Of the other 2 patients in this group who died with hemolytic streptococcus pneumonia, 1 was admitted to the ward on September 25, was shown to be free from S. hemolyticus on September 30, and died on October 12 with a secondarily acquired streptococcus pneumonia and empyema; the other was admitted on September 29 with streptococcus pneumonia and died the following day.