Issue Date: October 12, 2009
There is a notorious research freezer at the Monell Chemical Senses Center, on Market Street in Philadelphia. It belongs to George Preti, an organic chemist who has been collecting and studying the olfactory essence of humanity for years. His freezer is brimming with glass jars, ziplock plastic bags, and test tubes charged with swabs of sweat and skin secretions, fabric-captured breath, and urine extracts. The freezer is a cryogenic curio of human emanation, . . .
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