Premising that the rate of increase is not due to the birth-rate only, but also to a fall in the death-rate, and that voluntary philanthropy and State interference influence the latter, we pass to the consideration of conditions that affect the marriage-rate—consequently the birth-rate—in the artisan and labouring classes, composing the bulk of the nation. The Registrar-General, in his report for the year 1876, wrote as follows: “The state of trade and national industry is strikingly exhibited in the fluctuations of the marriage-rate of the last nine years.... The period of commercial distress, which began about the middle of 1866 and continued during five years ... influenced the marriage-rates of these years, which were 17·5, 16·5, 16·1, 15·9, 16·1 and 16·7 (in the 1,000) respectively. In 1872 and 1873 the working classes became excited under the rapid advance of wages and the diminution of the hours of labour, and the marriage-rates rose to 17·5 and 17·6 respectively.” In his report for 1881 the Registrar-General again accentuated this important point: “The marriage-rate reflects with much accuracy the condition of public welfare.” And further on: “The birth-rate was at its maximum in 1876, and fell uninterruptedly from that date year by year in natural accordance with the corresponding decline in the marriage-rate.” These years represented another period of commercial depression. We have here then incontrovertible proof of the national tendency. The mass of our people increase their numbers so soon as they are more comfortable, and the marriage-rate for each year may be called the pulse or indicator of the nation’s economic well-being. Its fluctuations coincide with the upward and downward movements of commercial activity. In this connexion we have also to note that the most rapid growth of our population is taking place in the great industrial centres, the mining, manufacturing and trading districts; and the type that there prevails is necessarily affecting the British race.