A treatise of diseases of the head, brain, and nerves : More especially of the palsy, apoplexy, lethargy, epilepsy, convulsions, cramp, frenzy, vertigo, megrim, inveterate head-ach, &c. with directions for their thorough cure; and how these and many other deplorable nervous distempers, may be prevented as well as cured, and consequently many lives saved, by the medicines herein, in English, prescribed without the least reserve. To which is subjoined, a discourse on the nature, real cause, and certain cure of melancholy in men, and vapours in women: instructing persons how to cure themselves absolutely of those perplexing and pernicious disorders, with safety, ease, and expedition. By a Physician.