To readers not versed in the ways of racing it may be explained that when a jockey is so fortunate as to win a race he receives a fee of five guineas, but when not successful in achieving the first place he receives only three guineas. He is paid two guineas for riding in trials on occasions when it is desirable to ascertain the power of some horse to win a particular race. A few jockeys, seldom heard of as winners of races, earn a considerable amount of money by riding in trials. Payment for trials is sometimes, however, included in the retainer a jockey gets from his master. Jockeys of celebrity are often retained by noblemen and gentlemen specially to ride their horses in preference to those of other competitors, for which they receive a handsome wage or retaining fee in addition to the usual payments for their services in the saddle, win or lose. They may thus be engaged by several masters during the same season, having first, second, and third calls, according to priority of engagement; so that a retained jockey has not the power to ride for casual fees, unless when his services are not required by one or other of his regular employers, and it rarely happens that one or other of a jockey's masters has not a horse for him to ride in all the classic races. Pre-engagements, then, although remunerative, are not always advantageous. A jockey who might have ridden a Derby winner has often been compelled to mount in that race, in the vain hope of victory, an inferior horse, because of having to obey the call of one or other of those who had retained his services.