seasons and zodiacal signs were simultaneously indicated by a succession of carefully ordered scents. The sense of smell, long considered the root of memory and the unifying basis of individuality, has come to the fore again in the experiments of Wilder Penfield. During brain surgery, electric probing of brain tissue revived many memories of the patients. These evocations were dominated and unified by unique scents and odors that structured these past experiences. The sense of smell is not only the most subtle and delicate of the human senses; it is, also, the most iconic in that it involves the entire human sensorium more fully than any other sense. It is not surprising, therefore, that highly literate societies take steps to reduce or eliminate odors from the environment. B.O., the unique signature and declaration of human individuality, is a bad word in literate societies. It is far too involving for our habits of detachment and specialist attention. Societies that