A letter from a physician in the Highlands, [electronic resource] : to his friend in London, on the subject of a consumptive habit. Wherein he demonstrates, That Temperance, or a proper Regimen of Diet, a moderate Exercise, without the Aid of Medicine, or Regard to Climate, may with Safety be depended on for a Cure in all such Cases. The Whole illustrated by A distinct Account of the Regimen of Diet observed by the oldest Men now living in that Country; especially of one in the Island of Jura, who in his Youth recovered a decayed Constitution; and tho' confined to a sharp Air, and a moist Climate, yet, by the mere Force of Temperance, arrived to the Age of 119, and enjoyed his Health and Senses to the last. To which is prefix'd, The Editor's case, which gave Rise to the Publication of this Letter.