History of Chemistry in Ancient and Medieval India, Incorporating the History of Hindu Chemistry by Acharya Prafulla Chandra Ray c17.s3.6

c17.s3.6

*An Apparatus for Killing Metals* · "Make two iron crucibles each 12 digits in length; the one with a narrow orifice containing sulphur is inserted into the other holding mercury; below the mercury is placed water (in a separate vessel). The mercury and sulphur should be carefully moistened in garlic juice, which has been filtered through a cloth. The apparatus is now lodged in an earthen pot and another placed over it, the rims being luted with cloth previously smeared with earth. * * Now cow-dung fire is urged. After continuing heating for three days the apparatus is taken out." This is known as *musha yantram*, which digests sulphur and other substances.