411 classification of odors as previously discussed the classification of odors is an extremely difficult job that at the ff industry is deliberately given to . The ancient roots of fragrant medicine by joie power phd director of the aromatherapy school. The oldest human senses are those that respond to chemicals in the environment in humans the senses of taste smell and chemesthesis have become secondary to. Since the beginning of recorded history humans have attempted to mask or enhance their own odor by using perfume which emulates natures pleasant smells
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