Chapter XII: Some Modern Problems 308

(1) The recent increase in numbers was in response to economic
requirements, and affords no ground for pessimism as to the
future. (2) The density desirable may be considered from the
point of view of moral welfare (3) and of national safety, as
well as from the economic standpoint. (4) The importance of
minor fluctuations. (5) Methods of limiting increase at the
present day. (6) Different ratios of increase as between
different classes, (7) between different races in the same
country, and (8) between different countries.