VII. A letter from Dr. Nettleton, Physician at Halifax in Yorkshire, to Dr. Whitaker, concerning the inoculation of the small pox

Sir, Having too often found with no small Grief and Trouble, how little Assistance of Art cou'd avail in many Cases of the Small Pox, I was induced to try the Method of Insition or Inoculation, which came so well recommended by several Physicians from Turkey, and which had also been lately practised in London.