Page:A History of Hindu Chemistry Vol 1.djvu/217

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HINDU CHEMISTRY
67

herbs and drugs, mercury can be killed with the aid of an apparatus alone; hence an expert must not disparage the efficacy of the apparatus."

Hamsapāka Yantram

"Take an earthen dish and fill it with sand and place another over it; apply gentle heat. Now digest in this apparatus [the ingredients] with the five alkalies (cf. pp. 45 and 69), the urines (see p. 30), and the "vida" (see p. 72). This is known as Hamsapāka Yantram by the adepts."[1]

Crucibles

"Earth of black red, yellow and white colour * * burnt husks of paddy, soot, earth from the ant-hill, well burnt excrements of the goat and the horse * * rust of iron" * * [varying proportions of the above ingredients are used for making crucibles, retorts, &c.]

"There are two kinds of crucibles, viz., open and covered (lit. blind) * * * the covered one

  1. r. r. s. has borrowed the descriptions of Garbha Yantram and Hamsapáka Yantram.