FORTIETH REGISTRATION REPORT.
THE average annual rate of increase in the population of Massachusetts from 1870 to 1875 was 2.538 per cent. From 1875 to 1880, it was 1.55 per cent., estimated to have been unevenly distributed over the five years as follows: 0.000; 0-324; 0-599; 2.999; 3-835.
In the three census years 1870, 1875 and 1880 the average of the ratios of the population was 3.98 (4.08; 3.94; 3.93) to the assessed polls. Calculating from the assessed polls of 1881 (469.207), the population for that year, upon the same basis, would be 1,867,444.
In the year 1881, there were recorded 45,220 births, 16,768 marriages and 36,458 deaths; or 1,003 more births, 1,230 more marriages, and 1,166 more deaths than in the previous year. The excess of living births over deaths was 8,762, showing a natural increase of births over deaths amounting to 163 less than in 1880.
The approximate rates for the year are:
This would indicate one child born alive to every 41 persons, one married in each 56, and one death in every 51 living.
The variations in the rates for a period of years are shown in Table 1.