On expostulating on other occasions with middle-aged and experienced workmen on the folly as well as the injustice of their trade unions, by which the public peace was compromised by the violences of strike after strike, without regard to the experiences of the suffering from the continued failures of their exertions for objects the attainment of which would have been most injurious to themselves, the workmen of the class remonstrated with, invariably disclaimed connexion with the proceedings, and showed that they abstained from attendance at the meetings. The common expression was, they would not attend to be borne down by “mere boys,” who were furious, and knew not what they were about. The predominance of a young and violent majority was general. In the metropolis the experience is similar. The mobs against which the police have to guard come from the most depressed districts; and the constant report of the superintendents is, that scarcely any old men are to be seen amongst them. In general they appear to consist of persons between 16 to 25 years of age. The mobs from such districts as Bethnal Green are proportionately conspicuous for a deficiency of bodily strength, without, however, being from that cause proportionately the less dangerously mischievous. I was informed by peace officers that the great havoc at Bristol was committed by mere boys. The experience of the metropolitan police is also similar as to the comparatively small proportion of force available for public service from such depressed districts. It is corroborative also of the evidence as to the physical deterioration of their population, as well as the disproportion in respect to age. Two out of every three of the candidates for admission to the police force itself are found defective in the physical qualifications. It is rare that any one of the candidates from Spitalfields, Whitechapel, or the districts where the mean duration of life is low, is found to possess the requisite physical qualifications for the force, which is chiefly recruited from the open districts at the outskirts of the town, or from Norfolk and Suffolk, and other agricultural counties. In general the juvenile delinquents, who come from the inferior districts of the towns, are conspicuously under size. In a recent examination of juvenile delinquents at Parkhurst by Mr. Kay Shuttleworth, the great majority were found to be deficient in physical organization. An impression is often prevalent that the criminal population consists of persons of the greatest physical strength. Instances of criminals of great strength certainly do occur; but speaking from observation of the adult prisoners from the towns and the convicts in the hulks, they are in general below the average standard of height. Reverting to the observations as to the influence of adverse physical circumstances on the morals of the population, I must here include in the observation the younger portion of the population.