Mitton, in _Kensington_, observes that before being Brompton Grove this part of the district had been known as Flounders Field,[441] but why tradition does not say. Flounders Field is on the verge of, if not within, the district known as Kensington Gore, and those topographers who have assigned _gore_ to the old English term meaning _mud_ are probably correct. From Kensington Gore, or Flounders Field, we may assume that the freemen of Kensington once wallowed their way as at Alnwick to Rottenrow, and the plight of these sportsmen must have been the more pitiable inasmuch as, at any rate at Alnwick, the freemen were by custom compelled to wear white robes. In this connection it may be noted that at the triennial road-surveying ceremony known in Guernsey as the _Chevauchee_ or Cavalcade of St. Michael (last held in 1837), a white wand was carried and the regimental band of the local militia was robed in long white smocks. "This very unmilitary costume," says a writer in _Folklore_, "must, I think, have been traditionally associated with the Chevauchee as it is quite unlike all the uniforms of that date worn by our local militia; it may have been a survival of some ancient, perhaps rustic, possibly priestly band of minstrels and musicians."[442] Whether our Whit or White Monday parade of carthorses has any claim to antiquity I am unaware, but it is noteworthy that the Scouring of the Uffington White Horse was celebrated on Whit Monday with great joyous festivity. The Cavalcade of St. Michael, in which all the nobility and gentry took part, was ordained to be held on the Monday of Mid May and was evidently a most imposing ritual. It seems to have culminated at the Perron du Roy (illustrated on p. 315), which was once the boundary stone of the Royal Fief: at this spot stood once an upright stone known as _La Rogue des Fees_, and a repast to the revellers was here served in a circular grass hollow where according to tradition the fays used to dance. During the procession the lance-bearer carried a wand eleven and a quarter feet long, the number of Vavasseurs was eleven, and it is possible that the eleven pools in Kensington, which were subsequently merged into the present Serpentine,[443] were originally constructed or adapted to this Elphin number in order to make a ceremonial course for the freemen floundering from Flounders Field to Rottenrow. Kensington in days gone by was pre-eminently a district of springs and wells; the whole of south-west London was more or less a swamp or "holland," and the early Briton, whose prehistoric canoe was found some years ago at Kew, might if he had wished have wallowed the whole way from Turnham Green, _via_ Brook Green, Parson's Green, Baron's Court, Walham and Fulham to Tyburn.