G. H. I. Galleries from which the Picture is to be viewed.

K. Refreshment-Room.

L. Rooms for Music or Bells.

M. The Old Ball from St. Paul's Cathedral.

N. Stairs leading to the outside of the Building. _a. b._ Sky-lights.
_c._ Plaster Dome, on which the sky is painted, _d._ Canvass on which
the part of the picture up to the horizon is painted. _e._ Gallery,
suspended by ropes, used for painting the distance, and uniting the
plaster and the canvas. _f._ Temporary Bridge from the Gallery G to
the Gallery _e._ from the end of which the echo of the building might
be heard to the greatest advantage. _g._ One of Fifteen Triangular
Platforms, used for painting the sky. _h._ Platforms fixed on the
ropes of the Gallery _e_, used for finishing and clouding the sky.
_k._ Different methods for getting at the lower parts of the canvas.
_l._ Baskets for conveying colours. &c. to the artists, _m._ Cross or
Shears, formed of two poles, from which a cradle or box is suspended,
for finishing the picture after the removal of all the scaffolding
and ropes.


Mr. Hornor, in his colossal undertaking, has "devised a mean" to draw us
out of the way; and a successful one it has already proved. As a return
for the interest which his enterprise has excited, we are, however,
induced to present its details to our readers, as perfect as the limits
of the MIRROR will allow; and for this purpose we have been favoured by
Mr. Parris with the drawing for the annexed cut.