52 страниц. 2013 год. LAP Lambert Academic Publishing Since disease, decay and death have always co-existed with life, the study of disease and their treatment must also have been con-temporeneous with the dawn of the human intellect. The primitive man must have used as therapeutical agents and remedial measures those things which he was able to procure most easily. There is no authentic record of medicines used by the primitive man. But the Rig Veda which is the oldest book in the library of man supplies curious information on the subject. The Indo-Aryans used the Soma as medicinal agent. It is not quite certain what the Soma plant was. This plant has not yet been satisfactorily identified. (Kiritikar & Basu, 1991).