Such was the man whom I offer to you as a model, young gentlemen, at the outset of your medical career. I hope that many of you will recognize some traits of your own special teachers scattered through various parts of the land in the picture I have drawn. Let me assure you that whatever you may learn in this or any other course of public lectures,--and I trust you will learn a great deal,--the daily guidance, counsel, example, of your medical father, for such the Oath of Hippocrates tells you to consider your preceptor, will, if he is in any degree like him of whom I have spoken, be the foundation on which all that we teach is reared, and perhaps outlive most of our teachings, as in Dr. Jackson's memory the last lessons that remained with him were those of his Old Master. THE MEDICAL PROFESSION IN MASSACHUSETTS. A Lecture of a Course by members of the Massachusetts Historical Society, delivered before the Lowell Institute, January 29, 1869. The medical history of eight generations, told in an hour, must be in many parts a mere outline. The details I shall give will relate chiefly to the first century. I shall only indicate the leading occurrences, with the more prominent names of the two centuries which follow, and add some considerations suggested by the facts which have been passed in review. A geographer who was asked to describe the tides of Massachusetts Bay, would have to recognize the circumstance that they are a limited manifestation of a great oceanic movement. To consider them apart from this, would be to localize a planetary phenomenon, and to provincialize a law of the universe. The art of healing in Massachusetts has shared more or less fully and readily the movement which, with its periods of ebb and flow, has been raising its level from age to age throughout the better part of Christendom. Its practitioners brought with them much of the knowledge and many of the errors of the Old World; they have always been in communication with its wisdom and its folly; it is not without interest to see how far the new conditions in which they found themselves have been favorable or unfavorable to the growth of sound medical knowledge and practice.