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 that vast country; but 'impression,' so far as this: only to show us the immense work that remains to be done; the immense success that can attend it—we cannot yet say the immense work that has been done.

But how much this is; what progress since the time we were taught to lament the 'hopeless Indian climate'!

The caution is this: as in all epidemic countries, more than in most—the death-rates of the Indian Army had shown two characteristics: they fell and they varied according to the nature of the season and the prevailing 'epidemic state.'

(1) E.g., in past, and, alas! in present years, we can say approximately what districts will be visited by fever or by cholera in 'epidemic' times: 'if the drainage and water supply, and neighbouring ground are left in that bad state'—when comes the 'epidemic,' those dwellings may expect it. If air, earth, and water continue to be fouled, if foul damp ground be not drained, if the public ways be not better kept, when comes the 'fever,' when comes the 'cholera,' those districts will have it.

But why does not cholera come every year to those dwellings? Their state is the same. And why is fever not always in those districts?

We do not know.

All we can say is, we know into what dwellings cholera and fever will not come, however 'epidemic' the year; we can put towns and districts into such a state that the epidemic, like the mediæval witch, is exorcised, so that it cannot come near them.