largest in the world. One of the many surprising features connected with the instrument lies in the fact of its having been constructed by local artisans; the woodwork, including pipe and mechanical equipment, is wholly of native material. The organ occupies a floor-space of thirty-three by thirty feet, and rises to a height of forty feet for the body of the organ itself, while the towers in front reach a height of forty-eight feet. Its stops and regulators number one hundred and ten; it contains over three thousand six hundred pipes, which range from half an inch to thirty-two feet in speaking length. There are four complete finger key-boards and one pedal system, making in all five individual organs. In size and proportions the organ comports with the great building in which it is installed; while in tonal quality and mechanical equipment it is of an order of excellence corresponding to the other appointments of this splendid auditorium.
The domed roof is constructed on the principle of lattice-work support, and is self-sustaining throughout its entire extent, there being no pillars between ceiling and floor. The roof-work is of wood, and at the time of its construction the beams and trusses were held together by wooden pegs and rawhide thongs. These materials were used instead of nails from necessity rather than from choice; nails were obtainable only as new supplies were brought in by prairie wagons, and the cost of the long haul precluded their use. While at present there are many larger roof-spans in the great buildings of the country, most of the more recent structures are of steel; and it is doubtful if ever there has been made a more stable structure of its kind consisting wholly of wood.
The Assembly Hall: In the south-west corner of
