A treatise of the safe, [electronic resource] : Internal Use of cantharides in the Practice of Physick. Written a few years since in Latin, by that eminently learned and experienc'd physitian, Dr. John Greenfield, Member of the College of Physitians in London, in his own Vindication, upon account of a Contest that then happen'd between him and some of the College, about his administring them inwardly to his Patients. Now Translated into English with his Approbation, By John Marten, Chyrurgeon. To which are added, Several further and very remarkable Observations and Histories of the said Doctor, also of the Translator and others concerning the safe, prevalent, effectual and wonderful Vertues of cantharides internally administred in divers difficult and deplorable Distempers, as Ulcers of the Kidney's and Bladder, Stone, Gravel, Strangury, Dropsies, and some particular Venereal Cases; most clearly evincing that without them, those Diseases can never be Cured. As also An Anatomical and Chymical Account of that insect, with some very curious Observations relating thereto, made by the Fire and Microscope. Likewise a Letter to the Doctor of the Effects of cantharides in the Gout, to which is subjoin'd a true History of that cruel Disease, and how far cantharides contributes towards its Cure.