From Charley Waterman, Gun Dogs and Bird Guns: A Charley Waterman Reader. GSJ Press, 1986—
A man can sit in his living room and tell you he smells nothing at all; at least he is conscious of no odors. Give him a whiff of frying ham, and he thinks he smells that and nothing else. So if his nose is selective, it is crudely so, and he records nothing but the exceptional odors. But visually he is highly selective, and he'll find a small object of interest in a vast scene containing a thousand larger things. The dog's nose is as selective as the man's eyes.
