An essay, on the nature and cure of scrophulous disorders, [electronic resource] : commonly called the king's evil; deduced from observation and practice. The ninth edition with additions. As also, a variety of cases; the remedies In Them Used, And Occasional Remarks. To which is perfixed a coloured plate of the herb vervain, and its Root. Published for the Good of Mankind; particularly the Common People. By John Morley, Esq; Of Halstead in Essex.