Page:A History of Hindu Chemistry Vol 1.djvu/215

Rh pipes, the fats, the acids, the salts and the alkalies, the poisons—all those are to be collected and chemical operations begun."

As borrows the description of this apparatus verbatim, it is unnecessary to repeat it here.

"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 the 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