Page:Popular Science Monthly Volume 82.djvu/383

Rh

.61, or 4.5 per cent.; ages 50-54, 1.16, or 6.7 per cent.; ages 55-59 (decrease), .13, or .5 per cent.; ages 60-64 (increase), 1.48, or 4.6 per cent.; ages 65-69, 3.23, or 6.75 per cent.; ages 70-74, 3.45, or 4.9 per cent.; age 75 and over, .82, or .6 per cent.

To summarize, the public records under consideration indicate that:

1. The mortality rate from apoplexy, paralysis, diseases of the heart, circulatory system, kidneys and liver has heavily increased in the younger as well as in the older groups. The total deaths were 367,700 in 1910.

2. In Massachusetts the death rate from these causes has increased 86.4 per cent, in 30 years.

3. In 16 important cities the death rate from organic diseases of the