If, however, the Duke, as the saying went, was a "very devil in his boots," he was all right out of them and good-natured enough when racing. Being at a Newmarket meeting just before the horses started, he missed his pocket-book, containing some bank-notes. When the knowing ones came about him and offered several bets, he said he had lost his money already and could not afford to venture any more that day. The horse which the Duke had intended to back was beaten, so he consoled himself, as he said, with the thought that the loss of his pocket-book only anticipated the evil, as if he had betted, he would have paid away as much to the worthies of the Turf. The race, however, was no sooner finished than a veteran half-pay officer presented His Royal Highness with his pocket-book, saying he had found it near the stand, but had not an opportunity of approaching him before. To this the Duke most generously replied; "I am glad it has fallen into such good hands—keep it. Had it not been for this accident, it would have been by this time among the blacklegs and thieves of Newmarket."

In 1764 the Duke of Cumberland matched his famous horse, King Herod, against the Duke of Grafton's Antinous for £1000 over the Beacon Course at Newmarket. This contest excited intense interest, and more than £100,000 is said to have changed hands over the victory of Herod, who won by what was then called half a neck. In the annals of the Turf, however, Duke William is best remembered on account of the fact that he bred the greatest horse of all time, "Eclipse."

This animal, whose wonderful powers as a racer have won him unparalleled fame, was got by Marske (a son of Squirt) out of Spiletta, a bay mare foaled in 1749 by Regulus, a son of the Godolphin Arabian. Eclipse was foaled in 1764, during the great eclipse of that year. When, at the death of the Duke, His Royal Highness's stud was brought to the hammer, Eclipse was purchased as a colt by Mr. Wildman (who appears to have had some insight into his value), under very curious circumstances. Mr. Wildman, who had, it was reported, been put into possession of the extraordinary promise evinced by a particular chestnut colt when a yearling, adopted the following questionable measures in order to make sure of him. When he arrived at the place of sale, he produced his watch and insisted that the auction had commenced before the hour which had been announced in the advertisements, and that the lots should be put up again. In order, however, to prevent a dispute, it was agreed by the auctioneer and company that Mr. Wildman should have his choice of any particular lot. By these means, it is generally believed, he became possessed of Eclipse at the moderate price of seventy or seventy-five guineas. Eclipse did not appear upon the Turf till he was five years old, and so invincibly bad was his temper that it was for some time uncertain whether he would not be raced as a gelding. It is by mere accident, indeed, that the most celebrated of English stallions was preserved to adorn the Calendar with the glories of his descendants. In the neighbourhood of Epsom Downs there lived a man of the name of Ellerton, who, however, was better known by the sobriquet of Hilton, and who united the occupations of poacher and rough-rider. To him, after all else had signally failed, Eclipse was handed over as an incorrigible, and he had recourse to the kill-or-cure system. He was at him day and night, frequently bringing him home at daybreak, after a poaching excursion, with a load of hares strung across his back. Twelve months of this regimen brought him sufficiently to his senses to fit him to be brought to the post, and once there, he ran because it was his pleasure to do so. Still he never could be raced like any other horse. Fitzpatrick, who rode him in almost all his races, never dared to hold him, or do more than sit quiet in his saddle. All through his Turf career his temper was wretched, and very seriously interfered with his value as a racer. His extraordinary superiority was also so palpable that latterly no odds could be got about him save by stratagems. One of these was very clever. For a race in which there were several horses engaged, when O'Kelly failed in getting any money on no-matter-what odds, he took them to a large amount that he placed every horse in it! This he did by naming Eclipse first and all the others nowhere, winning by his horse distancing the field. In 1769, Wildman and O'Kelly were joint-owners of Eclipse, the latter, however, soon after becoming the sole owner at the price of 1750 guineas. At a late period of his life, when an offer to purchase him was made to O'Kelly, these were the terms demanded—£20,000 down, an annuity of £500 for his (O'Kelly's) life, and the right of having three mares every year stinted to him as long as he lived.

This "horse of horses" was short in the forehand, and high in the hips, which gave elasticity to his speed. Upon dissection the muscles were found to be of unparalleled size—a proof of the intimate relation between muscular power and extraordinary swiftness. No horse of his day would appear to have had the shadow of a chance against him.

Eclipse died February 26th, 1789, aged twenty-five, at Cannons, in Middlesex, to which place he had been removed from Epsom about six months previously, in a machine, constructed for the purpose, drawn by two horses, and attended by a confidential groom. When his owner, old O'Kelly, died at his house in Piccadilly on December 28th, 1787, he bequeathed Eclipse and Dungannon to his brother Philip.

Another famous horse was Highflyer, which received his name from having been foaled in a paddock, in which were a number of highflyer walnut trees. He was named by Lord Bolingbroke at a large dinner-party at Sir Charles Bunbury's. The horse in question was the cause of considerable jealousy between Colonel O'Kelly, the owner of Eclipse, and Mr. Tattersall, the founder of the celebrated institution at Hyde Park Corner, whose prosperity was greatly increased by the purchase of Highflyer. "The Hammer and Highflyer" indeed became a favourite toast of the day. Both owners felt the necessity of crossing by the blood of their respective stallions, but each was afraid of increasing the celebrity of the other's horse thereby. The two men were widely different in character. Colonel O'Kelly (of whom an account has already been given) piqued himself upon being descended from the first race of Milesian kings, although he had served for the greatest part of his life some of the humblest offices. It was his boast that he bred and ran his horses for fame. He certainly sacrificed many thousands of pounds in aspiring to the glory of being the Jehu of the day. Mr. Tattersall bred for profit. The former never sold anything before he had trained and ran it at Newmarket; the latter never trained anything, with the exception of one mare early in life, which was of no note. The Irishman matched everything—the Lancashire man sold everything. The one was hasty and impetuous in betting upon the descendants of Eclipse. The other was cautious, and left it to those who had bought them to risk their money upon the progeny of Highflyer. In a word, they resembled each other in nothing, except, it was wickedly said, their total ignorance of horses and extreme good fortune. Mr. Tattersall in the decline of life was more than usually anxious that his son should persevere in keeping stallions and breeding race-horses. O'Kelly directed by his will that all his stud should be sold as soon as possible after his death. Mr. Tattersall's son and heir sold the whole stud after his death. O'Kelly's nephew and executor was obliged to sell under the direction of the will, but he bought most of the horses for his own use. He was a cultivated man, and had been well brought up by his uncle.

Mr. Tattersall used to say that there was no part of Colonel O'Kelly's conduct which he wished he had imitated except that in giving an excellent education to his heir.

Mr. Tattersall was a very economical man. When Highflyer died, many suggestions were made that the horse should be skinned and stuffed, as had been done by Colonel O'Kelly in the case of Eclipse. Mr. Tattersall, however, replied that he did not see the use of stuffing him with hay after he was dead, as he could no longer cover; he had stuffed him full enough with hay and corn when he was alive and producing money. Mr. Tattersall had very practical ideas about such things, and when inspecting his cattle whilst they were fattening, was often overheard to say, "Eat away, my good creature! eat away, and get fat soon. The butcher is waiting for you, and I want money."

Mr. Tattersall's prosperous career arose in a great measure from a successful speculation in Scotland. Having heard that a Scotch nobleman's stud was to be sold there, he applied to a friend to go his halves in the purchase. "If you will find money, for I have none," said he, "I will find skill, and you shall have a good thing." The sum was deposited, and he went to the sale, partly by coach and partly on foot, buying nearly all the horses for a trifle. Upon his return, he sold a few at York for more money than the whole of them had cost, making several hundred pounds out of the rest from purchasers at Newmarket and in London. Mr. Tattersall used often to say this was the first money he ever possessed above a few pounds. Having thus acquired a little capital, he soon increased it by similar means, and also, of course, by his business at Hyde Park Corner.