Vital statistics : an introduction to the science of demography / by George Chandler Whipple.

  • Whipple, George Chandler, 1866-1924.
Date:
1923
Catalogue details

Licence: In copyright

Credit: Vital statistics : an introduction to the science of demography / by George Chandler Whipple. Source: Wellcome Collection.

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    PAGE numbers — Other sources of error — Age-groups — Persons of un¬ known age — Redistribution of population Redistribution for non-censal years — Progressive character of age distribution Types of age distribution — Ratio of deaths to births Stand¬ ards of age distribution — Age distribution of people of United States — Demographic view of population — Movement of popu¬ lation . CHAPTER VI PREDICTION OF FUTURE POPULATION Methods commonly used — Example of graphical method — Best graphical method of estimating future population World conditions — Population of United States Population of the several States — Biological factors — Economic factors Effect of immigration — Law of diminishing rate Saturation Effect of emigration — Expansion of Area Method of forecasting I High and low estimates. I -' ' ‘ CHAPTER VII ! GENERAL DEATH-RATES, BIRTH-RATES, MARRIAGE-RATES Gross, or general, death-rates — Precision of death-rates Corrected death-rates — Revised death-rates — Variations in \ death-rates in places of different size Errors in published I death-rates — Rates for short periods — Birth-rates — Relation between birth-rates and death-rates — Fecundity — Illegitimate births — Marriage-rates — Divorce-rates Natural rate of in¬ crease — Comparison of general rates Marriage-rates, birth¬ rates and death-rates in Sweden — Downward trend in birth-rates and death-rates — Variations due to population estimates Birth-rates and death-rates in Massachusetts — Monthly death- ] rates in Massachusetts — Marriage-rates in Massachusetts — Di- i vorce-rates in Massachusetts — Limited use of gross death-rates i — Birth-death ratio — The ideal death-rate. 237 I CHAPTER VIII SPECIFIC DEATH-RATES Restriction of death-rates — Ages of Man — The vision of Mirza — Computation of specific death-rates Specific death- rates by ages and sex — Specific death-rates as affected by mari- I