THE MODERN ORGAN. The modern organ is ordi narily several organs in one. the number varying according to the size of the complete instrument. In a large organ the order of claviers would be as follows: echo organ, solo organ, swell organ, great organ. choir organ, and pedal organ. The great organ contains the pipes of largest scale and most powerful tone, and does not ordinarily contain any soft stops unless the manual is re quired to serve as a choir as well as a great organ. The siren organ is that part of the instrument which is inclosed in a box. The pipes are usually of smaller scale than are those of the great organ, and where there are only two manuals. it usually includes several soft and fancy registers, and also the majority of the reed stops. The choir organ is used for soft. accompaniment, and is made up largely of flute-tone stops. with possibly one or two reel stops. In the best organs they are inclosed in a swell hox which opens on all four sides. The solo organ contains the orchestral stops. some or all of which may be inclosed in a swell box. The tc•lm organ is up of stops of small seals amt of delicately soft lone. They are
included in the swell box of the swell organ, e.en though they have a separate manual. \\ here this is done, however, it is usual to inclose them in a box which nin,t he not less than three inches in thickness. The pedal organ, as it, name implies. belongs to the pedallmard and consists of ranks of pipes whk-h practically the former. they are cylindrical in form, and w•114,11 of the latter material, they are either rectangul r, triangular, or cylindrical. The 01(11 and quality of the tone depends on the length and general elmrneter of the Ilue pipe. Ilue pipes may be either open cylindrical. conical. conical with bull at the top, conical inverted. stopped eylindrieal. or half-stopped \Coed pipes are either open fon• sided. or rectangular; three-sided or triangular: pyramidal; inverted pyramidal; turned eylin are a continuation of the manuals. They are of more powerful tone, however, and are so designed n. to afford a suitable bass or contrast to any stop upon the manuals.