Machiavelli would have found prompting for some grim aphorism in this curious eagerness of Europe to teach the teeming millions of Asia to rid themselves of checks on their greater growth, and thus to increase the pressure of the Asiatic surplus seeking an outlet at the expense of Europe. It is in respect to the urgent demand for room for an overcrowding population that there exists alike to China and Japan the strongest stimulus to warlike action in the Pacific. China in particular wants colonies, even if they be only such colonies as provide opportunities for her coolies to amass enough wealth to return in old age to China. From the fertile basin of China there have been overflow waves of humanity ever since there has been any record of history. Before the era of White settlement in the Pacific the Chinese population had pushed down the coast of Asia and penetrated through a great part of the Malay Archipelago, an expansion not without its difficulties, for the fierce Malay objected to the patient Chinaman and often the Chinaman remained to fertilise but not to colonise the alien soil. By some Providential chance neither the Chinaman nor the Japanese ever reached to Australia in the early days of the Pacific, though there are records of Japanese fishermen getting as far as the Hawaiian Group, a much more hazardous journey. If the Asiatics had reached Australia the great island would doubtless have become the southern province of Asia, for its native population could have offered no resistance to the feeblest invader.
In the past, however, the great natural checks kept the Asiatic populations within some limits. Internal wars, famines, pestilences, infanticide—all claimed their toll. Nature exercised on man the checks which exist throughout the whole animal kingdom, and which in some regions of biology are so stern that it is said that only one adult survives of 5,000,000 spawn of a kind of oyster. Now European influence is steadily directed in Asia to removing all obstacles to the growth of population. When the Asiatics wish to fight among themselves Europe is inclined to interfere (as at the time of the Boxer outbreak in China), on the ground that a state of disorder cannot be tolerated. In India internecine warfare is strictly prohibited by the paramount Power. In Japan all local feuds have been healed by pressure from Europe and America, and the fighting power of the people concentrated for external warfare.
Not alone by checking internal warfare does Europe insist on encouraging the growth of the Asiatic myriads. European science suggests railways, which make famine less terrible; flood prevention works which save millions of lives. European moralists make war on such customs as the suicide of young widows and the exposure for death of female children. But, far more efficacious than all, European scientists come forward to teach to the Asiatics aseptic surgery, inoculation, and the rest of the wisdom of preventive and curative medicine. Sometimes Nature is stronger than science. The Plague, for instance, still claims its millions. But even the Plague diminishes before modern medical science.
In his Health and Empire (1911), Dr Francis Fremantle tells of the campaign against plague in India. He writes:
"The death-rate from plague in 1904 in the Lahore and Amritsar districts in which I worked was 25 per 1000. Over 1,000,000 Indians died of plague in 1904, over 1,000,000 in 1905; in 1906, 332,000, and it was thought the end was in sight. But 640,000 died in the first four months of 1907; in 1908, 321,000 died; in 1909 only 175,000, but in 1910 again very nearly 500,000, and this year more than ever. The United Provinces had barely been reached by the epidemic in 1904; now with a population equal to that of the United Kingdom, they have been losing 20,000 every week; and the Punjab 34,000 in one week, 39,000, 47,000, 54,000, 60,000 and so on—over 430,000 in the first four months of this year in a population of 25,000,000. Imagine Great Britain and Ireland losing the same proportion—over 1,000,000 from plague in half a year. And India as a whole has in fifteen years lost over 7,000,000 from plague. Why wonder at her unrest?
"What, then, can the Government do? Extermination of rats is impossible; disinfection on a large scale is impracticable; evacuation of villages cannot be done voluntarily on any universal scale; the Government will not apply compulsion, and such evacuation is quite useless without a rigid cordon of police or military that will prevent communication between one infected village and others not yet infected. A cordon, it has been proved over and over again, cannot be maintained; the native who wishes to pass it has only to present some official with a cautious rupee. Extermination of rats in an Asiatic country has often failed; but here is without a shadow of doubt the key to the problem. The methods formerly adopted had been to give a capitation grant for every rat brought to the appointed place, and before long it was found, for instance in Bombay, that an extensive trade had grown up in the breeding of rats, whereby, at a few annas apiece from the Government, many families were able to sustain a comfortable existence.... But since sentence on the rat-flea has been pronounced for the murder of 7,000,000 persons and over, the best method for his extermination will not be far off.
"It is often debated whether even half-measures are worth being continued. Professor W. J. Simpson, in his exhaustive monograph on the plague, and in 1907 in his Croonian Lectures, has shown how in history epidemics of plague have come and gone in different countries with long intervals between them, often of one hundred and thirty to one hundred and fifty years. In the eighteenth century, for instance, India seems to have been almost free of the plague, but early in the seventeenth century it suffered severely. The present epidemic is assuming, as far as we can trust previous records, unprecedented proportions; probably after a few years it will die out again.
"An occasional cynic may argue that, since we have saved so many thousands of lives annually from famine and wars, it may be just as well to let the plague take their place. To such a pessimistic and inhuman conclusion it is impossible for one moment to submit. It may be that for economic reasons some parts of the Indian Empire would be happier if their population were less dense; but it does not follow that we should allow Death to stalk uninterrupted, unopposed, and apparently without limit, throughout the country. Economics apart, we may yet be absolutely convinced, whether as doctors or as statesmen, that it is our mission, our duty, to protect the populations included under British rule to the best of our ability against every scourge as it may arise; and therefore it is urgent that such measures as we have be pushed forward with the utmost vigour."
That tells (in a more convincing way, because of the impatience of the doctor, accustomed to European conditions, at the slow result of work in India) how resolute is the White Man's campaign against the Yellow Man's death-rate in one part of Asia. Such a campaign in time must succeed in destroying the disease against which it is directed and thus adding further to the fecundity of Asia.
Nor is the fight against diseases confined to those parts of Asia under direct White rule. The cult of White medicine spreads everywhere, carried by Japanese as well as by European doctors and missionaries. Its effects already show in the enormous increase of Asiatic population, proved wherever definite figures are available. That growth adds year by year to the danger that the Yellow Man will overrun the Pacific and force the White Man to a second place in the ocean's affairs, perhaps not even leaving him that.