The Materia Medica of the Hindus, compiled from Sanskrit Medical Works c4.s2.3

c4.s2.3

There is a peculiarity in fluid measures which must also be noticed in order to prevent misapprehension of the Sanskrit texts. When a fluid article is ordered in measures of a *prastha* or two *seers* and upwards, twice the quantity mentioned should be taken. Thus if in a preparation it is stated, take of solid paste of certain substances one *seer*, oil two *seers*, and water eight *seers*, the quantities actually taken are solid paste one *seer*, oil four *seers* and water sixteen *seers*. In measures below two *seers* or in those indicated by *pala* such as eighty *palas*, sixty *palas* etc, the quantities are not doubled.