Populus Tremuloides. Aspen Poplar. (The American Aspen; the British Aspen is P. tremula.) N. O. Salicaceae. Tincture of inner bark. Solution of Populin.   Clinical.-Ardor urinae. Bladder, catarrh of. Gleet,

POPULUS TREMULOIDES American Aspen The gastric and urinary symptoms point to its usefulness in dyspepsia and catarrh of the bladder, especially in old people. Good remedy in vesical troubles after