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18
Deaths.| Approximate death.rates.
Year.
Males. Femalen. Total. Males. Females. Total.
19l4 3,901 2,430 6,331 1.84 1.01 1.40
1915 4,064 2,651 6,715 1.92 1.11 1.49
1916 3,837 2,527 6,364 1.88 1.05 1.44
1917 4,040 2,728 6,768 201 1.14 1.53
1918 3,946 2,974 6,920 1.99 1.24 1.58
1919 2,945 2,252 5,197 1.47 0.94 118
1920 2,675 2,000 4,675 1.29 0.82 1 04
1921 2,737 2,076 4,813 1.32 0.85 107
1922 2,841 2,047 4,888 1.35 0.84 1.08
1923 2,586 1,846 4,432 1.23 0.75 0.97
The table shows that during the previous three years the mortality had increased.
The decrease in 1923 is considerable, and is, in fact, greater than in any year since
1910, if the abnormal figures of the war period be disregarded.

The decrease is greatest at the principal ages of influenza mortality and it is, no doubt,
to some extent to the absence of any epidemic prevalence of influenza in 1923
that the decline in phthisis mortality must be ascribed.
The number of notifications of tuberculosis in London during 1923 (52 weeks)
was 12,175 as against 11,548 in 1923. Of these 9,791 were pulmonary and 2,384
other forms of tuberculosis. These figures compare with those published in these
reports prior to 1921. Further correction of the figures by the exclusion of cases
notified as primary but eventually found to have been previously notified, brings
the total number of pulmonary cases down to 7,561 and other cases to 2,221, the
corresponding figures for last year being 7,561and2,158 Notification of tubercu-losis,