214 ALPINES AND BOG-PLANTS 
gigantic invader, that overgrown cuckoo which he himself 
had unwittingly introduced into his pleasure-ground of 
choice rarities, and now could not hope to be quit of, 
except with dynamite and digging enough for the founda- 
tions of great Babylon. And the moral of this tale is, 
always be very careful how you admit a native into culti- 
vation. You never can tell when, instead of a meek 
angel, you will find yourself entertaining a rampant devil 
unawares, and totally unable to be rid of him. 
