"National Health: a Soldier's Study," Contemporary Review, January, 1903. The Reports of the Inspector-General of Recruiting are said to show that the recruits are every year smaller, lighter, and narrower-chested.

This has been well illustrated during the past forty years in the flourishing county of Glamorgan in Wales, as is shown by Dr. R.S. Stewart ("The Relationship of Wages, Lunacy, and Crime in South Wales," Journal of Mental Science, January, 1904). The staple industry here is coal, 17 per cent of the population being directly employed in coal-mining, and wages are determined by the sliding scale as it is called, according to which the selling price of coal regulates the wages. This leads to many fluctuations and sudden accesses of prosperity. It is found that whenever wages rise there is a concomitant increase of insanity and at the same time a diminished output of coal due to slacking of work when earnings are greater; there is also an increase of drunkenness and of crime. Stewart concludes that it is doubtful whether increased material prosperity is conducive to improvement in physical and mental status. It must, however, be pointed out that it is a sudden and unstable prosperity, not necessarily a gradual and stable prosperity, which is hereby shown to be pernicious.