His secrets consisted in knowing what was past, and foretelling what was to come, by the assistance of astrology: and the virtue of his remedies principally consisted in giving present relief to unfortunate young women in all manner of diseases, and all kinds of accidents incident to the fair sex, either from too unbounded charity to their neighbours, or too great indulgence to themselves.

His first practice being confined to his neighbourhood, was not very considerable; but his reputation soon extending to the other end of the town, there presently flocked to him the women attending on the court, next, the chamber-maids of ladies of quality, who, upon the wonders they related concerning the German doctor, were soon followed by some of their mistresses.

Among all the compositions of a ludicrous and satirical kind, there never existed any that could be compared to those of Lord Rochester, either for humour, fire, or wit; but, of all his works, the most ingenious and entertaining is that which contains a detail of the intrigues and adventures in which he was engaged while he professed medicine and astrology in the suburbs of London.

The fair Jennings was very near getting a place in this collection; but the adventure that prevented her from it, did not, however, conceal from the public her intention of paying a visit to the German doctor.

The first chamber-maids that consulted him were only those of the maids of honour; who had numberless questions to ask, and not a few doubts to be resolved, both upon their own and their mistresses' accounts. Notwithstanding their disguise, he recognised some of them, particularly Miss Temple's and Miss Price's maids, and her whom Miss Hobart had lately discarded: these creatures all returned either filled with wonder and amazement, or petrified with terror and fear. Miss Temple's chamber-maid deposed that he assured her she would have the small-pox, and her mistress the great, within two months at farthest, if her aforesaid mistress did not guard against a man in woman's clothes. Miss Price's woman affirmed that, without knowing her, and only looking in her hand, he told her at first sight that, according to the course of the stars, he perceived that she was in the service of some good-natured lady, who had no other fault than loving wine and men. In short, every one of them, struck with some particular circumstance relating to their own private affairs, had either alarmed or diverted their mistresses with the account, not failing, according to custom, to embellish the truth, in order to enhance the wonder.

Miss Price, relating these circumstances one day to her new friend, the devil immediately tempted her to go in person, and see what sort of a creature this new magician was. This enterprise was certainly very rash; but nothing was too rash for Miss Jennings, who was of opinion that a woman might despise appearances, provided she was in reality virtuous. Miss Price was all compliance, and thus having fixed upon this glorious resolution, they only thought of the proper means of putting it into execution.

It was very difficult for Miss Jennings to disguise herself, on account of her excessive fair and bright complexion, and of something particular in her air and manner: however, after having well considered the matter the best disguise they could think of was to dress themselves like orange girls.

[These frolics appear to have been not unfrequent with persons of high rank at this period. In a letter from Mr. Henshaw to Sir Robert Paston, afterwards Earl of Yarmouth, dated October 13, 1670, we have the following account: "Last week, there being a faire neare Audley-end, the queen, the Dutchess of Richmond, and the Dutchess of Buckingham, had a frolick to disguise themselves like country lasses, to red petticoats, wastcotes, &c., and so goe see the faire. Sir Barnard Gascoign, on a cart jade, rode before the queen; another stranger before the Dutchess of Buckingham; and Mr. Roper before Richmond. They had all so overdone it in their disguise, and looked so much more like antiques than country volk, that, as soon as they came to the faire, the people began to goe after them; but the queen going to a booth, to buy a pair of yellow stockings for her sweet hart, and Sir Bernard asking for a pair of gloves sticht with blew, for his sweet hart, they were soon, by their gebrish, found to be strangers, which drew a bigger flock about them. One amongst them had seen the queen at dinner, knew her, and was proud of her knowledge. This soon brought all the faire into a crowd to stare at the queen. Being thus discovered, they, as soon as they could, got to their horses; but as many of the faire as had horses got up, with their wives, children, sweet harts, or neighbours, behind them, to get as much gape as they could, till they brought them to the court gate. Thus, by ill conduct, was a merry frolick turned into a penance."—I've's Select Papers, p. 39.

Bishop Burnet says, "at this time, (1668) the court fell into much extravagance in masquerading: both the king and queen, all the court, went about masked, and came into houses unknown, and danced there, with a great deal of wild frolic. In all this people were so disguised, that, without being in the secret, none could distinguish them. They were carried about in hackney chairs. Once the queen's chairmen, not knowing who she was, went from her. So she was alone, and was much disturbed, and came to Whitehall in a hackney coach; some say in a cart."—Burnet's History, vol. i., p. 368.]

This was no sooner resolved upon, but it was put in execution they attired themselves alike, and, taking each a basket of oranges under their arms, they embarked in a hackney coach, and committed themselves to fortune, without any other escort than their own caprice and indiscretion.