THE

LAW OF POPULATION:

A TREATISE, IN SIX BOOKS;

IN DISPROOF OF THE SUPERFECUNDITY OF
HUMAN BEINGS, AND DEVELOPING THE

REAL PRINCIPLE OF THEIR INCREASE.

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

28

•

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.

Of the possible Periods of Human Duplication,

concluded

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,

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