1911 Encyclopædia Britannica (1910)
“ The tree is cultivated in southern Calabria, whence the entire supply of bergamot oil is drawn. Machinery is mostly used to express the oil from the fruit, which is gathered in November and December. The oil, which on standing deposits a stearoptene, bergamot camphor or bergaptene, is a limpid greenish-yellow fluid of a specific gravity of 0·882 to 0·886, and its powerful but pleasant odour is mainly due to the presence of linalyl acetate, or bergamiol, which can be artificially prepared by heating linalol with acetic anhydride. The chief use of bergamot oil is in perfumery. ”
