But most of all the dirty poor,

Who make, quoth Darwin, good manure;[84]

That when the Russians, logger-headed,

Were kill’d by Frenchmen, ever dreaded,

Darwin rejoiced the filthy creatures

Would serve for stock to make mosquitoes;[85]

And also urges with propriety,

That war’s no evil in society;

But has a charming operation,

To check excess of population.