_Moral Losses attending Civilization._--There is little doubt that vice has made gains which reduce in a disastrous way the otherwise favorable results of increasing wealth. The "hastening ills" that are said to attend accumulating wealth and decaying manhood have come in a disquieting degree and forced us to qualify the happy conclusions to which a study of purely economic tendencies leads. The evil is not confined to the realm of family relations, but pervades politics, "high finance," and a large part of the domain of social pleasures. The richer world is the more sybaritic--self-indulgent and intolerant of many moral restraints; and if one expects to preserve an unquestioning trust in the future, he must find a way in which the economic gains which he hopes for can be made without a casting away of the moral standards which are indispensable. The greatest possible achievement in this direction would be an abandonment of vicious restraints on population and a general increase of the forethought and the self-command which even now constitute the principal reliance for holding the birth rate within prudent limits. _The Working of Malthusianism in Short Periods as Contrasted with an Opposite Tendency in Long Ones._--There is little doubt that by a long course of technical improvement, increasing capital, and rising wages, the laboring class of the more prosperous countries have become accustomed to a standard of living that is generally well sustained and in most of these countries tends to rise. There is also little uncertainty that a retarded growth of population has contributed somewhat to this result. One of the facts which Malthus observed is consistent with this general tendency. Even though the trend of the line which represents the standard of living be steadily upward, the rise of actual wages may proceed unevenly, by quick forward movements and pauses or halts, as the general state of business is flourishing or depressed. In "booming" times wages rise and in hard times they fall, though the upward movements are greater than the downward ones and the total result is a gain. Now, such a quick rise in wages is followed by an increase in the number of marriages and a quick fall is followed by a reduction of the number. The birth rate is somewhat higher in the good times than it is in the bad times. Young men who have a standard of income which they need to attain before taking on themselves the care of wife and children find themselves suddenly in the receipt of such an income and marry accordingly. There is not time for the standard itself materially to change before this quick increase of marriages takes place, and the general result of this uneven advance of the general prosperity may be expressed by the following figure:-- [Illustration]