Page:A History of Hindu Chemistry Vol 1.djvu/195

Rh

Yavakshāra (factitious carbonate of potash), sārjikākshāra (trona or natron); the alkaline solution prepared according to directions given in Ch. XI; and borax.

Internal administration of alkali is recommended for dissolving the stones or gravels (urinary calculi).

Lead and tin are described as vermifuge—a property also accepted by the later Iatro-chemists.

Powdered tin rubbed for seven days together with the creamy portion of curd is recommended for internal administration.

For the treatment of ulcer an external application of sulphate of copper, sulphate of iron, orpiment and realgar, &c., is prescribed.