'As you toil and clamber up one of these steep gorges (having left your pony soddening his girths in water, a mile or two lower down) you hear, every now and then, echoing among the hills, in a low tone, more silent than the previous silence, a melancholy warning bugle,--a signal to the miners to withdraw. Then, there is a thundering, and echoing from hill to hill, and perhaps a splashing up of great fragments of rock into the air; and on you toil again until some other bugle sounds, in a new direction, and you stop directly, lest you should come within the range of the new explosion.

There were numbers of men, working high up in these hills--on the sides--clearing away, and sending down the broken masses of stone and earth, to make way for the blocks of marble that had been discovered. As these came rolling down from unseen hands into the narrow valley, I could not help thinking of the deep glen (just the same sort of glen) where the Roc left Sindbad the Sailor; and where the merchants from the heights above, flung down great pieces of meat for the diamonds to stick to. There were no eagles here, to darken the sun in their swoop, and pounce upon them; but it was as wild and fierce as if there had been hundreds.'

Pictures from Italy, Charles Dickens. Ch. 9.