A lady prominent in the London world is said to possess the power of restoring to their pristine hue turquoises that have grown pale. According to report, this lady is often called upon to use her peculiar gift by friends whose turquoises have faded.[168] While the improvement supposed to be noted may be more imaginary than real in many cases, there is little doubt that this stone is exceptionally sensitive to the action of certain emanations, and may, at times, be influenced by the wearer’s general state of health. The writer believes that a turquoise, like an egg, can never be restored to its original state. IV On the Use of Engraved and Carved Gems as Talismans The virtue believed to be inherent in precious stones was thought to gain an added potency when the stone was engraved with some symbol or figure possessing a special sacredness, or denoting and typifying a special quality. This presupposes a considerable development of civilization, since the art of engraving on precious stones offers many mechanical difficulties and thus requires a high degree of artistic and mechanical skill. It is true that the earliest engraved stones, the Babylonian cylinders and the Egyptian scarabs, were both designed to serve an eminently practical purpose as well, namely, that of seals; but in a great number of instances these primitive seals were looked upon as endowed with talismanic power, and were worn on the person as talismans. The scarab, so highly favored by the Egyptians as an ornamental form, is a representation of the _scarabæus sacer_, the typical genus of the family _Scarabæidæ_. They are usually black, but occasionally show a fine play of metallic colors. After gathering up a clump of dung for the reception of the eggs, the insect rolls this along, using the hind legs to propel it, until the material, at first soft and of irregular form, becomes hardened and almost perfectly round. A curious symbolism induced the Egyptians to find in this beetle an emblem of the world of fatherhood and of man. The round ball wherein the eggs were deposited typified the world, and, as the Egyptians thought that the scarabæi were all males, they especially signified the male principle in generation, becoming types of fatherhood and man. At the same time, as only full-grown beetles were observed, it was believed these creatures represented a regeneration or reincarnation, since it was not realized that the eggs or larval and pupa stages had anything to do with the generation of the beetle. Thus the scarab was used as a symbol of immortality.