Rhus Aromatica. R. canadensis. R. suaveolans. Betula triphylla. Lobadium aromaticum. Turpinia glabra. Fragrant Sumach. N. O. Anacardiaceae. Tincture of fresh root bark. (Pharmacop. of Amer. Inst. says of fresh leaves.)

Rhododendron. Rhododendron chrysanthum. Siberian Rhododendron. Yellow Snow-rose. N. O. Ericaceae. Tincture of fresh leaves.   Clinical.-Amenorrhoea. Asthenopia. Bone, pains in. Bunions. Chorea. Ciliary neuralgia. Coryza. Delirium. Diarrhoea. Diphtheritic paralysis. Earache.

Rhodium Oxydatum Nitricum. Nitrate of the Oxide of Rhodium. (Rhodium Rh. A. W. 103.) Solution.   Clinical.-Anus, itching of; burning in. Constipation. Ears, pains in. Haemorrhoids. Headache. Hearing, illusions of.

Rheum. Rheum officinale. R. palmatum. Rhabarbarum. Rhubarb (though called “Turkey-rhubarb,” the root comes from China, the exact species yielding it not being certainly known). N. O. Polygonaceae. Tincture and trituration

Rhamnus Frangula. Rhamnus frangula. Alder Buckthorn. N. O. Rhamnaceae. Tincture and trituration of the bark gathered in spring from the younger branches. Tincture of bark of root. Tincture of ripe

Rhamnus Catharticus. Rhamnus catharticus. Buckthorn. N. O. Rhamnaceae. Tincture or fluid extract of ripe berries.   Clinical.-Appendicitis. Colic. Constipation. Diarrhoea. Tympanites. Typhlitis.   Characteristics.-The common Buckthorn produces black, shiny, four-sided

Ratanhia. Rhatany Root. Ratanhia. Mapato. Pumacuchu. The root of several species of Krameria, especially Krameria triandra. N. O. Polygalaceae (or Leguminosae according to some). Tincture of the root.   Clinical.-Anus,