Elementary biology; an introduction to Elementary biology; an introduction to the science of life elementarybiolog00grue Year: 1924 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 _§0 Fig. 202. Mortality rates for various diseases In the early part of the period the fluctuations are irregular; in the latter part the infectious diseases show a steady decline. There is a steady decrease in the general death rate, and a steady increase in the death rate from cancer. The figures on the left indicate the number of deaths per io,ooo of population in New York City; the figures at the bottom
Elementary biology; an introduction to Elementary biology; an introduction to the science of life elementarybiolog00grue Year: 1924 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 _§0 Fig. 202. Mortality rates for various diseases In the early part of the period the fluctuations are irregular; in the latter part the infectious diseases show a steady decline. There is a steady decrease in the general death rate, and a steady increase in the death rate from cancer. The figures on the left indicate the number of deaths per io,ooo of population in New York City; the figures at the bottom are for the years. The general death rate is on a scale showing the deaths per looo for each year. The high point for pneumonias in 19iS represents the influenza epidemic
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