A dissertation upon tea: explaining its nature and properties by many new experiments : and demonstrating from philosophical principles, the various effects it has on different constitutions : to which is added the natural history of tea : and a detection of the several frauds used in preparing it : also a discourse on the virtues of sage and water, and an enquiry into the reasons why the same food is not equally agreeable to all constitutions : in a letter to the Right Honourable Mary Lady Malton
