The history of the Organ runs back so far into the centuries, that no matter what point one might select for examination, it can scarcely be brought into the scope of a lecture except in a very empty and skeleton form. You will bear with me, then, for the superficial manner in which I shall be forced to treat many important points. As many of those present do not propose to make a study of the organ, I shall avoid treating of the instrument itself in any technical sense, and would offer a few thoughts on the subject of THE INFLUENCE OF THE ORGAN IN HISTORY, with a glance at the "schools of playing" thus created. The Organ is called the "king of instruments." This phrase has been used so often that it has become decidedly well worn and trite. None the less, however, is the expression full of significance; and to what an extent (especially in a historical sense) is known to but comparatively few persons, among whom I fear far too few organists would be found. To bring up some of these neglected facts; to examine them in their historical and theoretical bearing, as well as in practice; to thus create a greater love for and appreciation of the instrument on the part of its students,--to do this, I say, is, if I apprehend it aright, one of the principal objects which the Boston University has had in view in founding this department. The organ, then, is called the "king of instruments." If we look at the phrase a little closer, it will be perceived that the simile is a striking one. A king, in the so-called "good old times of yore," if he were a man of any force of character, generally possessed, along with the divine right theoretical, any quantity of the human power practical. The day of more or less ornamental constitutional figure-heads had not yet arrived. In other words, the live kings of the past, of the feudal time, moulded to their own tastes and characters their age, their people, or only their court, according to the innate ability they might possess. In turn they were themselves affected, to a degree, by their surroundings, but to a far lesser extent than is the case at this day, the balance of influence remaining largely in their favour. I will endeavour to show that among musical instruments this "kingship," as regards the organ, held good in a parallel way,--that by its own nature as to construction, by its very faults and weaknesses, by the mission it was called upon to fulfil, it did, in very fact, long reign supreme as king of instruments.