Gordon Stables,
The naval cadet: A story of adventures on land and sea
(1898)
“ So quiet is it then on some portions of the Llanos, that you can hear the sound of the human voice in ordinary conversation full two hundred yards away, while if you wander long here, so great is the strain on one's nerves that the slightest sound will make one start—a tiny snake rustling among the grass, a breaking reed, or lizard nibbling at a stalk of couch. ”
