The most delightful close springy turf covers the Downs with a velvet mantle, forming the most exhilarating of all earthly surfaces upon which to walk and the most restful on which to stretch the wearied body. Most delightful also are the miniature flowers which gem and embroider the velvet; gold of potentilla, blue of gentian, pink and white of milkwort, purple of the scabious and clustered bell-flower; the whole robe scented with the fragrance of sweet thyme. Several unfamiliar species of orchis may be found and also the rare and beautiful rampion, "The Pride of Sussex." The hills are a paradise for birds; the practice of snaring the wheatear for market has lately fallen into desuetude and the "Sussex ortolan" is becoming more numerous than it was a dozen years ago. Every epicure should be interested in the numerous "fairy rings," sufficient evidence of the abundance of mushrooms which will spring up in the night after a moist day. One of the most comfortable traits of our chalk hills however is the marvellous quickness with which the turf dries after rain. Those who have experienced the discomfort of walking the fells of Cumberland and Westmoreland, which at most seasons of the year resemble an enormous wet sponge, often combined with the real danger of bog and morass, will appreciate the better conditions met with in Sussex hill rambling. Where the chalk is uncovered it becomes exceedingly slippery after a shower, but there is rarely a necessity to walk thereon. The pedestrian on the Downs should use caution after dusk; chalk pits are not seen, under certain conditions, until the wayfarer is on the verge. Holes in the turf are of frequent occurrence and may be the cause of a twisted ankle, or worse, when far from help. The "dene holes" are of human origin. Once thought to be primitive dwelling places, they are now supposed to have been merely excavations for the sake of the chalk or the flints contained therein, and possibly adapted for the storage of grain. Of equal interest are the so-called "dew ponds," of which a number are scattered here and there close to the edge of the northern escarpment. Undoubtedly of prehistoric origin, the art of making the pond has become traditional and some have been built by shepherds still living. These pools of clear cool water high up on the crest of a hill gain a mysterious air by their position, but their existence is capable of a scientific explanation. Built in the first place to be as nearly as possible non-conducting, with an impervious "puddled" bottom, the pond is renewed every night to a certain extent by the dew which trickles down each grass and reed stem into the reservoir beneath, and to a much greater extent by the mists which drift over the edge to descend in rain on the Weald. The pools might well be called "cloud ponds." [Illustration: WILLINGDON.]