The use of perfume by mankind dates back almost 4000 years ago. Before modern day perfumes were produced by chemists and sold in shops, they were produced by making a solution of organic plant extracts in an alcohol solution. Plants are the largest source of aromatic compounds utilised in Perfumery. Many sections of a plant can be utilised for their fragrant properties. For instance petigrain oil is derived from orange leaves, neroli oil is derived from orange blossoms and orange oil is derived from orange zest. Other sections of a plant used in Perfumery are bark, fruits, twigs, resins roots, rhizomes, bulbs, seeds and woods. It is known that perfumes made in the traditional way are imbued with a depth of character and beauty rarely found in modern perfumery.