Iron in Ancient India c7.s5.t1.35

c7.s5.t1.35

4. The test of " swimming on water like a duck " is a crucial one with the Aurvedic physician for " lauhas." We have seen that precipitated ferric oxide of the laboratory does not " swim like a duck." It is probable that Aurvedic " lauhas," being very light and porous, are easily assimilated in the body while ordinary ferric oxide being not so light and porous is not easily taken up and hence not used by Allopathic doctors.