The image on the cover of Linux Device Drivers, Third Edition is a bucking bronco. A colorful description of this animal appears in Marvels of the New West: A Vivid Portrayal of the Stupendous Marvels in the Vast Wonderland West of the Missouri River, by William Thayer (The Henry Bill Publishing Co., Norwich, CT, 1888). Thayer quotes a stockman, who gives this description of a bucking horse: "When a horse bucks he puts his head down between his legs, arches his back like an angrycat, and springs into the air with all his legs at once,coming down again with a frightful jar, and he sometimes keeps on repeating the performance until he is completely worn out with the excursion. The rider is apt to feel rather worn out too by that time, if he has kept his seat,which is not a very easy matter, especially if the horse is a real scientific bucker,and puts a kind of side action into every jump. The double girth commonly attached to these Mexican saddles is useful for keeping the saddle in its place during one of those bouts,but there is no doubt that they frequently make a horse buck who would not do so with a single girth.With some animals you can never draw up the flank girth without setting them bucking."