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THE
LAW OF POPULATION:
A TREATISE, IN SIX BOOKS.
A TREATISE, IN SIX BOOKS;
IN DISPROOF OF THE SUPERFECUNDITY OF HUMAN BEINGS, AND DEVELOPING THE
REAL PRINCIPLE OF THEIR INCREASE.
LONDON:
Printed by WILLIAM CLOWES,
Stamford-street.
CONTENTS.
BOOK III.
OF THE THEORY OF THE SUPERFECUNDITY OF HUMAN BEINGS:
ITS NUMERICAL ERRORS STATED AND DISPROVED.
CHAP.
I.
II.
III.
IV.
Table XVI. Shewing the Prolificness required in order to double
a Population in 12 Years.
XVII. In which the preceding one is divided into Sections
of Eight Years, shewing the Annual Proportions of the Mar-
riages, Births, and Deaths, to the existing Population
throughout.
XVIII. Exhibiting the Mean Proportions in a Population
doubling every 12 Years, in which the Births are as about
1 to 12, and the Deaths as 1 to 36.
XIX. Shewing the Progress of a Population doubling
between every 14 and 15 Years.
Of the possible Periods of Human Duplication,
continued.
Table XX. Shewing the Progress of a Population in which the
Marriages take place at 20, and all the Married have 8
Children, 4 of whom survive to Marry at the same age, and
become equally prolific: the Infant and unprolific Deaths
omitted throughout, as having no effect on the Rate of
Increase. The Mean Duration of Life being 65 years, and the
proportion of effete Population to the Two Couples with which
the Table commences, 3.
concluded
28
47
Table XXI. Shewing the Progress of a Population in which the
Marriages take place at 23; each having, out of 5,265 Births,
Three which live to Marry, One in the First, and the remainder
in the Fifth and Eighth Years after Marriage; all such sur-
viving to the age of 65; the existing Progenitors of the Two
First Couples being, therefore, 24 Individuals.
,, XXII. Exhibiting the results of preceding one divided, to
the Year 200, into Sections of 20 Years each, and containing
the presumed Proportion of Unprolific Births throughout.