Pure Blood.
Blood purifiers sold in shops are one of the swindles of the age, and the time is not far distant, I hope, when quackery will be banished entirely from the British Isles. Meanwhile beware of everything you see on a chemist's counter that bears a government three-halfpenny stamp.
You cannot be happy, it is true, if the blood be impure, and moreover, while it is so you are far more liable to catch colds and coughs and any ailment that may be epidemic, such as influenza.