Fifteenth 4
Double Open Fourniture, 5 ranks
Diapason (metal) 32 Mixture, 3 ranks
Open Diapason (wood) 16 Posaune 32
Open Diapason (metal) 16 Contra Fagotto 16
Salicional (metal) 16 Ophicleide 16
Bourdon (wood) 16 Trumpet 8
Bass Flute (wood) 8 Clarion 4
Principal (wood) 8

COUPLERS.

Solo Super-Octave. Choir to Great.
Solo Sub-Octave. Choir Super-Octave.
Solo to Great. Choir Sub-Octave.
Swell to Great Super-Octave. Solo to Pedals.
Swell to Great Unison. Swell to Pedals.
Swell to Great Sub-Octave. Great to Pedals.
Swell to Choir. Choir to Pedals.

In addition to these coupling movements there are other accessories,
consisting of 36 pneumatic pistons, 6 to each manual, and 12 acting
upon the Pedal stops. There are also 6 composition pedals acting upon
the "Great" and "Pedal" stops simultaneously, and 4 pedals acting upon
the Swell organ pistons. The Swell and Solo organs are each provided
with tremulants.

Two large bellows in the basement of the Hall, and blown by two steam
engines of 8 h.p. and 1/2 h.p. respectively, supply the wind, which
passes from the bellows to 14 reservoirs in various positions in the
instrument, the pressure varying from 3 1/2 to 22 inches.

ORGAN IN THE CATHEDRAL OF NOTRE-DAME, PARIS, FRANCE.

The ancient organ in the Cathedral of Notre-Dame de Paris was built in
the reign of Louis XV by Thierry Leselope and the best workmen of his
time. In the Eighteenth Century repairs and additions were made by the
celebrated Cliquot. Further repairs were made by Dalsey from 1832 to
1838, and in 1863 the French Government confided the complete
reconstruction of the instrument to Aristide Cavaille-Coll. He spent
five years over the work, and the new organ was solemnly inaugurated on
the 6th of March, 1868.

[Illustration: Keyboards, Cathedral Notre Dame, Paris]

It will be noticed that this illustration is not a photograph, but a
wood engraving, drawn by hand, and the artist was evidently not a
musician--he only shows 38 keys on each manual; there should be 56.

It stands in a gallery over the west door of the Cathedral. It has
five manuals of 56 notes each,