Hereward the Last of The English by Charles Kingsley

The fair Torfrida sat in an upper room of her mother's house in St. Omer, alternately looking out of the window and at a book of mechanics. In the garden outside, the wryneck (as is his fashion in May) was calling Pi-pi-pi among the gooseberry bushes, till the cobwalls rang again. In the book was a Latin recipe for drying the poor wryneck, and using him as a philtre which should compel the love of any person desired.

Mechanics, it must be understood, in those days were considered as identical with mathematics, and those again with astrology and magic; so that the old chronicler, who says that Torfrida was skilled in "the mechanic art," uses the word in the same sense as does the author of the "History of Ramsey," who tells us how a certain holy bishop of St. Dunstan's party, riding down to Corfe through the forest, saw the wicked queen-mother Elfrida (her who had St. Edward stabbed at Corfe Gate) exercising her "mechanic art," under a great tree; in plain English, performing heathen incantations; and how, when she saw that she was discovered, she tempted him to deadly sin: but when she found him proof against allurement, she had him into her bower; and there the enchantress and her ladies slew him by thrusting red-hot bodkins under his arms, so that the blessed man was martyred without any sign of wound. Of all which let every man believe as much as he list.