LONDON. September IS. Certain races at Dqneaster ,subsequent to St. Loger Day, are well worth referring to. Thus there was the magnificent performance of the Eoyal Hunt Cup winner, Irish Elegance, in winning the Portland Plate under the .crushing weight of lOst 21b. Moreover. ,-, he was- favourite, and won in most impressixe style by three lengths. Beyond all question he is- not only the 'fastest horse of the: present generation, but probably the fastest there" has_ been. I fcis a dreadful calamity he' is not eligible for the ■ Stud : Book, through some remote" flaw in his pedigree. The result is that breeders dare not patronise him because the progeny would not be eligible. .This great horse must be rendered' useless f or* breeding 'purposes.' from the Stud Book point of .view. Thu s we have the anomaly of , the" best horse .beejng barred to breeders through sonic ridiculous flaw a long way back in h.is pedigree. , There , was still another wonderful performan.ee at .the meeting. Lord d.'Abernon.'s great mare, Diadem., won the. Town Moor Handicap under 9st 121b> giving a tremendous lot of weight aiway to. Quadrille and Brigando, who were second' and third respectively. In its way the perfbrniance : was almost as brilliant as that of Irish Elegance, for Diadem is oray a small mare, but she is a wonderfully made one' and' her action is magnificent. These two handicap performances, of Irish, Elegance .and, Diadem, will , long stand" out in the case of the former his' Royal Hunt Cup and Portland Plate performance^ .may n.eyer be; surpassed.- , irish Elegance looks, as good, as he is,< which, is giving,., him high, praise indeed. Diadem does not look as good as. she is,and in, that sense, therefore; her performances are a revelation.. • As regards other events af: Doncaster, I may mention, that Sir William Coolce's Golden Orb (fancied' for the tCambridgo ) could n6t be?^ Dromio fo> the Scarborough Stakes, winch scorns to wash, out the former's prospects. Lacrosse ,who won tlie Rbno Plate for Mr S. B. Joel ,has faileU at Manckester, but the course, was longer here and, moreover he was not UkeJy in> a field of four to suffer his usual, fate of getting left a few lengths at the start. Lord Derby 's Archaic, a- very fine Polymelus colt, was heavily backed to win this particular race, but the colt ran badly, and was undoubtedly 1 feeling the effects of an attack of coughing. Keysoe had" been coughing, and when she ran as if no worse for it, Mr Lambton trusted Archaic, only to see himself confounded. Such, is racing! Haki won the Doncasier cup. His task was extremely simple, as he had only two bad horses to account for,, and odds of 7 to 7 were therefore betted on him. The Prince of Wales 's Nursery is decided over a mile which is the first mile race of the year for two-year-olds. This one was won by Firework, in the Marquis of Anglessey's colours, and the value of the victory is enhanced by the fact that this neat son of Prince Palatine was carrying a 101 b penalty.