Plain and useful directions for those who are afflicted with cancers By which they may save themselves a great deal of pain and danger; Pass every Hour of their Lives more comfortably; And see all that is to be performed toward a cure. With an account of the Vienna hemlock; With which Dr. Stork did so great good in Cancers. And A History of some absolute Cures performed by the English Herb Cleavers; communicated to the Author by a Lady of Quality; and authenticated by the Testimony of a Clergyman, who saw them. By Dr. Hill, member of the Imperial Academy, &c