This well-known essence is extracted from the little cells visible in
the rind of lemons, by submitting raspings of the fruit to pressure. The
greater portion of the oil of lemons sold in England is imported from
Portugal, Italy, and France. It is very frequently adulterated with oil
of turpentine. In order to present the public with a perfectly pure
commodity, G. Nelson, Dale, and Co. import their Essence of Lemon direct
from Sicily, and from a manufacturer in whom they have the fullest
confidence.
Nelson's Essence of Lemon is sold in graduated bottles, eightpence each,
each bottle containing sufficient for twelve quarts of jelly.