To Dr LEWIS.You ask me, why I don’t take the air a-horseback, during this fine weather?—In which of the avenues of this paradise would you have me take that exercise? Shall I commit myself to the high-roads of London or Bristol, to be stifled with dust, or pressed to death in the midst of post-chaises, flying-machines, waggons, and coal-horses; besides the troops of fine gentlemen that take to the highway, to shew their horsemanship; and the coaches of fine ladies, who go thither to shew their equipages? Shall I attempt the Downs, and fatigue myself to death in climbing up an eternal ascent, without any hopes of reaching the summit? Know then, I have made divers desperate leaps at those upper regions; but always fell backward into this vapour-pit, exhausted and dispirited by those ineffect
