LECH, II.] ON PERSPECTIVE-
7S
PLATE XXIV.
A TUSCAN CAPITAL IN PERSPECTIVE,
In order to vary the application of the foregoing
principles, this object, is feen underneath. Its di-
menfions are obtained by forming a fketch of its
parts adjacent to the fpace it is intended to occupy,
as A, 1, 2, 3, 4, 5, 6, 7. Then fix the extent of
its broadeft part neareff. to the eye, the abacus, as
C D: in the middle of this, let fall a perpendicular, fts
J r, which is to receive the heights marked A 1 to 7r
and from J towards D, fet off the widths, a, b, c, d,
e,f,g, as marked on the original fketch. Rule the
heights to L the center, and the widths to H the
vanifliing point, their interferons give points which
muft be carefully united, to form the outline,
As there is fome patience required in treating fuch
objects, the beft way is to procure the extremes
within which the parts to be reprefented mull fall:
as in the former plate between A 5, and c, a\ fo in
this plate between the line J r, and the interferon
which finds the upright line g ; then take the larger
members rirft, and having placed them, with their
proper intervals, the leffer members which tall with-
in thofe intervals will follow more readilv. In fa£r,
when the ftudent becomes acquainted with the
forms of objects, and confiders their appearances in
nature, which after having thus invefligated them he
will furvey with greatly increafed accuracy of eye,
he may by means of the leading circles only deli-
neate with fufficient exactnefs the forms attached
to them. It is well to know how to ufe fuch prin-
ciples, when occafion requires; but to employ them
on all occafions is not neceifary to a praetifed eye.
Thefe examples Oiould be turned, and drawn on
the vertical plane, &c. The principles are the fame.
PLATE
7S
PLATE XXIV.
A TUSCAN CAPITAL IN PERSPECTIVE,
In order to vary the application of the foregoing
principles, this object, is feen underneath. Its di-
menfions are obtained by forming a fketch of its
parts adjacent to the fpace it is intended to occupy,
as A, 1, 2, 3, 4, 5, 6, 7. Then fix the extent of
its broadeft part neareff. to the eye, the abacus, as
C D: in the middle of this, let fall a perpendicular, fts
J r, which is to receive the heights marked A 1 to 7r
and from J towards D, fet off the widths, a, b, c, d,
e,f,g, as marked on the original fketch. Rule the
heights to L the center, and the widths to H the
vanifliing point, their interferons give points which
muft be carefully united, to form the outline,
As there is fome patience required in treating fuch
objects, the beft way is to procure the extremes
within which the parts to be reprefented mull fall:
as in the former plate between A 5, and c, a\ fo in
this plate between the line J r, and the interferon
which finds the upright line g ; then take the larger
members rirft, and having placed them, with their
proper intervals, the leffer members which tall with-
in thofe intervals will follow more readilv. In fa£r,
when the ftudent becomes acquainted with the
forms of objects, and confiders their appearances in
nature, which after having thus invefligated them he
will furvey with greatly increafed accuracy of eye,
he may by means of the leading circles only deli-
neate with fufficient exactnefs the forms attached
to them. It is well to know how to ufe fuch prin-
ciples, when occafion requires; but to employ them
on all occafions is not neceifary to a praetifed eye.
Thefe examples Oiould be turned, and drawn on
the vertical plane, &c. The principles are the fame.
PLATE