Dickens declares it to be "the fashion, especially among people of fashion, to point with pity to a tale of modern witchcraft, to an advertisement of a child's caul, or to the _bona fide_ certificates of cases from the takers of quack medicines, and to deplore the ignorance of their inferiors. Delusions, however, of the grossest kind are not confined to the illiterate. A cloud of dupes have ever floated about in the higher regions of society; while it is quite a mistake to suppose that the refinements and discoveries of the nineteenth century have dispersed them. The reign of Queen Victoria, like that of Elizabeth and Anne, has its Dr. Dees, and Lillys, and Partridges, who are as successful as their precursors in gaining proselytes who can pay handsomely. Damsels of high degree, fresh from boarding school, with heads more full of sympathy for the heroes and heroines of fashionable novels, and ideas more fixed upon love affairs than on any legitimate studies, can easily find out, through mysteriously-worded advertisements in the Sunday papers, or through the ready agency of friends who have already become victims of the 'science' of astrology and magic, the whereabouts of these awful and wonderful beings. There are a number of styles and classes of them, all varying in appearance and mode of operations. There are the old women, who, consoled by the glories of their art, repine not at inhabiting comfortless garrets in the purlieus of the New Cut, Lambeth; and hiding their vocation under the mask of having stay laces or infallible corn plasters to sell, receive more visitors from the fashionable cream of Belgravia than from the dross of Bermondsey. Disguises are sometimes resorted to, and parties of titled ladies have been known to meet, and put on the habiliments of 'charwomen,' and to pass themselves off as dress-makers. There is an old man, with unshaven beard and seldom-washed face, who lives in more comfortable circumstances, with his son, in Southwark, (the favored district of the conjurers,) who, to keep up appearances, has 'Engineer' hugely engraved on a great brass plate over the door, who casts nativities, and foretells events of the future, for three or five shillings, as the appearance of the visitor will warrant him in demanding; receives all his votaries sitting at a terribly littered table of dirty paper, with a well-smoked clay pipe beside him. Passing to a higher grade, the 'agent,' or arranger of matters, legal, pecuniary, or domestic, only practises the black art for the love he bears it, and to oblige his friends, but never refuses a few shillings' fee, out of respect to the interests of the science. Nearly all his customers are people of title." We now come to speak of events in our own country which seem to be somewhat akin to those which have so recently transpired in England. We allude to what are familiarly termed "rappers," or "knocking spirits," from the _noises_ which they are said to make.