DOI Page / Citation link:
https://doi.org/10.11588/diglit.1211#0012
9
those on the darkest part of the ball are even darker than those on the
surface of it, from being more hid from the light. I will give another
instance in an auricula, whose flowers are also of the umbel kind, growing
from one common centre, but more separate than the snow-ball flower.
And here you have only to consider, what part of an imaginary ball each
floret occupies, and let it have just the same degree of general shade, that
that part of a simple ball has, as has been instanced in fig. 1: and as to the
partial shade arising from the leaves, turning to or from the light, a little
observation and practice will soon make it easy to a learner. I will now
take a flower of a concave or cup-like form, for instance, a tulip, the
outside of which must be shadowed exactly like the ball, as far as it par-
takes of that form, and the inside like the cup, fig. 2, as you see in the
following example, fig. 3 : if the flower is turned to or from the light, sup-
posing it always to come from the left hand, the effect will be nearly as
expressed in fig. 4 and 5 ; and the lesson of the cups in different positions^
will be a direction how to shade this flower in every situation that you can
place it, or any flower of a cup-like form.
If you copy the effect of light and shade upon a cup and saucer, you
will have a direction as to the general effect of it upon a full-blown rose,
placed in the same position, and the light coming on it from the same
direction; for the outer leaves spread round the cup part of it, like the
saucer, in which the cup stands. The cup indeed is empty, and the cup of
the flower is full of small inner leaves, but still the general effect is the
same, and the partial lights on those small inner leaves must be separately
expressed ; but great care must be taken not to destroy or interrupt the
general effect of light upon the whole flower, by an improper management
of it upon those inner leaves.
You must observe, that the light is supposed to fall upon all these
examples, from the same altitude or direction that it does on fig. 1 and
fig. 2, plate 2 ; that is, when the sun is mid-way between early morning end
noon-day. At noon, the sun's rays at A, plate 2, throw too short a shadow
: . ■ c
those on the darkest part of the ball are even darker than those on the
surface of it, from being more hid from the light. I will give another
instance in an auricula, whose flowers are also of the umbel kind, growing
from one common centre, but more separate than the snow-ball flower.
And here you have only to consider, what part of an imaginary ball each
floret occupies, and let it have just the same degree of general shade, that
that part of a simple ball has, as has been instanced in fig. 1: and as to the
partial shade arising from the leaves, turning to or from the light, a little
observation and practice will soon make it easy to a learner. I will now
take a flower of a concave or cup-like form, for instance, a tulip, the
outside of which must be shadowed exactly like the ball, as far as it par-
takes of that form, and the inside like the cup, fig. 2, as you see in the
following example, fig. 3 : if the flower is turned to or from the light, sup-
posing it always to come from the left hand, the effect will be nearly as
expressed in fig. 4 and 5 ; and the lesson of the cups in different positions^
will be a direction how to shade this flower in every situation that you can
place it, or any flower of a cup-like form.
If you copy the effect of light and shade upon a cup and saucer, you
will have a direction as to the general effect of it upon a full-blown rose,
placed in the same position, and the light coming on it from the same
direction; for the outer leaves spread round the cup part of it, like the
saucer, in which the cup stands. The cup indeed is empty, and the cup of
the flower is full of small inner leaves, but still the general effect is the
same, and the partial lights on those small inner leaves must be separately
expressed ; but great care must be taken not to destroy or interrupt the
general effect of light upon the whole flower, by an improper management
of it upon those inner leaves.
You must observe, that the light is supposed to fall upon all these
examples, from the same altitude or direction that it does on fig. 1 and
fig. 2, plate 2 ; that is, when the sun is mid-way between early morning end
noon-day. At noon, the sun's rays at A, plate 2, throw too short a shadow
: . ■ c