It was only towards the end of our stay, that a man down at Calistoga, who was expatiating on the terrifying nature of the sound, gave me at last a very good imitation; and it burst on me at once that we dwelt in the very metropolis of deadly snakes, and that the rattle was simply the commonest noise in Silverado. Immediately on our return, we attacked the Hansons on the subject. They had formerly assured us that our canyon was favoured, like Ireland, with an entire immunity from poisonous reptiles; but, with the perfect inconsequence of the natural man, they were no sooner found out than they went off at score in the contrary direction, and we were told that in no part of the world did rattlesnakes attain to such a monstrous bigness as among the warm, flower-dotted rocks of Silverado. This is a contribution rather to the natural history of the Hansons, than to that of snakes.