NoTE.-In recent years the writer has introduced graduate students to general sociology by a course in the Autumn Quarter on the evolution of sociological method since i8oo. This course has been followed in the Winter Quarter by an outline of general sociology. The present paper is made up of three introductions to this latter course. They were written in I920, I9I5, and I9I6 respectively. Although in some respects they overlap and duplicate one another, they place the emphasis at slightly different points, and together they form a consistent exhibit. They are presented here in the order indicated. Whether introductions ever really introduce; whether such general views as every synthetic thinker wants to present ever take shape in the minds of beginners, in advance of detailed instruction about rudiments, is a question which I find myself each year a little less inclined to answer with a confident affirmative. Nevertheless I cannot shake off the ingrained sense of duty to perform a ritual of introduction. I try to assure myself with the reflection that if it does not mean anything at the point where academic custom prescribes it, after it has itself been introduced by the course to which in form it was the preface, it may have acquired meaning. I therefore recommend that it be read in advance with zeal even if perforce without knowledge, and then that it be reread as a review at the end of the course, and with such piety as may be consistent with further acquaintance. Teachers of general sociology will ask no apology from one of their number for printing such an extract from the notes which he has actually used in the classroom. Whether other teachers follow a method like or unlike his, they will have uses for this transcript from actual experience. For reasons which I have indicated in the "First Introduction," I hope that other readers of the Journal will find this informal pedagogical talk not wholly unprofitable.