A treatise of the great antidote of Van Helmont, Paracelsus and Crollius; by them called the elixir proprietatis: known by all physitians to be the greatest cordial and only medicine in the world for long and sound life: restoring nature even at the point of death, and effectually taking away the seeds of all diseases. And an examination of authors concerning its true preparation: as also, a ready way to volatise salt of tartar, by which this elixir is truly prepared. Written by J.H., a lover of truth, and made publick for the good of all people.