“Assuming the correctness of the births, deaths, and population, in the selected districts, it appears that 35 per cent. of the increase of the population under the age of five was due to births in the permanent portion of the population, and 65 per cent. due to the movement of the migratory portion; also, that 38 per cent. of the increase of population at all ages was due to excess of births over deaths, leaving 62 per cent. to be accounted for by excess of immigration over emigration.”—Elliott, The Laws of Human Mortality in Massachusetts; Proceedings of Am. Assoc. for Adv. of Science, Montreal, 1857, p. 57.
[67] Chickering, loc. cit., p. 49.
[68] The tables now presented, we have compiled from the fifteen published Registration Reports of the State of Massachusetts. Advance sheets of the Sixteenth Report have kindly been furnished me while this article is passing through the press, by the compiler, Dr. Josiah Curtis, of Boston. The premature births for 1856 and 1857 are not given in the reports for those years, so that I cannot extend my calculations beyond 1855. Deductions from the still-births at the full time, which are alone given in the years referred to, are of course useless for the present inquiry.
[69] Births, 27,664; population, 994,665.
[70] Births, 32,845; population, 1,132,369.
[71] Total births at full time, 32,845; living births at full time, 32,120. Fœtal deaths, 2064; still, at full time, 725; premature, 1339.
[72] Total deaths, including 1462 fœtal, 19,461.
[73] Total deaths, including 2064 fœtal, 21,523.
[74] Births at full time, 154,245; premature, 5899.
[75] Fourteenth Registration Report, 1855.