At the best, his system will be relaxed, his power of resistance will be lessened, his chances of recovery will be diminished in the same degree as his chances of falling ill are increased.

If now you throw in some special disease, corrupting the blood, and transmitted with fatal certainty to the progeny, the wonder is that a people so situated have not died out in a single generation.
In fact they have died out pretty fast, though there is reason to believe that the mortality rate has largely decreased in the last three years; and careful observers believe even that in the last year there has been an actual increase, rather than a decrease in the native and half caste population.

In 1832 the Islands had a population of 130,315 souls; in 1836 there were but 108,579; in 1840, only 84,165, of whom 1962 were foreigners; in 1850, 69,800, of whom 3216 were foreigners; and in 1860, 62,959, of whom 4194 were foreigners.

The native population has decreased over sixty per cent.

in forty years.
In the same period the foreigners have increased very slowly, until there are now in all 5366 foreigners and persons born here, but of foreign parentage, on the Islands.