When off the horse, there is nothing about this habit to distinguish it from any trim golf suit, with the stitching up the left front which is now so popular. When on the horse, it looks, as some one phrased it, as though one were riding side saddle on both sides. This is accomplished by having the fronts of the skirt double, free nearly to the waist, and, when off the horse, fastened by patent hooks. The back seam is also open, faced for several inches, stitched and closed by patent fasteners. Snug bloomers of the same material are worn underneath. The simplicity of this habit is its chief charm; there is no superfluous material to sit upon--oh, the torture of wrinkled cloth in the divided skirt!--and it does not fly up even in a strong wind, if one knows how to ride. The skirt is four inches from the ground--it should not bell much on the sides--and about three and a half yards at the bottom, which is finished with a five-inch stitched hem. [Illustration: COSTUME FOR CROSS SADDLE RIDING. Designed by the Author.] Any style of jacket is of course suitable. One that looks well on the horse is tight fitting, with postilion back, short on hips, sharp pointed in front, with single-breasted vest of reddish leather (the habit material of brown whipcord), fastened by brass buttons, leather collar and revers, and a narrow leather band on the close-fitting sleeves. A touch of leather on the skirt in the form of a patch pocket is harmonious, but any extensive leather trimming on the skirt makes it unnecessarily heavy. A suit of this kind should be as irreproachable in fit and finish as a tailor can make it. This is true economy, for when you return in the autumn it is ready for use as a rainy-day costume. Once you have your habit, the next purchase should be stout, heavy soled boots, 13 or 14 inches high, which will protect the leg in walking and from the stirrup leather while riding. One needs two felt hats (never straw), one of good quality for sun or rain, with large firm brim. This is important, for if the brim be not firm the elements will soon reduce it to raglike limpness and it will flap up and down in your face as you ride. This can be borne with composure for five or ten minutes, but not for days and weeks at a time. The other felt hat may be as small and as cheap as you like. Only see that it combines the graces of comfort and becomingness. It is for evenings, and sunless rainless days. A small brown felt, with a narrow leather band, gilt buckle, and a twist of orange veiling around the crown, is pretty for the whipcord costume.