GEOMETRY...........................................................NATURE

The patterns are merely The plants are copied as

straight lines, dots, and accurately as possible.

portions of circles.

The lines become stems. The plant is applied

without repetition.

Leaves are added to the Repetition is used with the

stems. plants.

Serration is added to the Weaving economy induces

leaf-edge. symmetry.

Similarity of serrated Symmetry induces Geometrical

leaf-edge to the Akanthos Severity, and the Omission

plant, is observed; of all details of the

Imitation becomes more original plant which are not

direct; and this artificial easily worked in connection

foliage becomes termed with geometrical

"Acanthus." arrangement.

Flowers generally circular The Flowers and Leaves

in mass-shape, are added (_only_) survive; the growth

at the ends of the spiral of the stems is forgotten;

stems. and tradition does the rest.

§ 3.--APPLICATION OF THE TWO KINDS.

Each of these two kinds of foliage has its own proper use. Artificial

foliage is appropriate to the enrichment of Architecture; and Natural

foliage to those objects which are not architectural, but are termed

"movables," including under this term, Furniture, and more especially

Hangings and other applications of the Textile art.

This may be seen on comparing the two columns below, of which the L.H.

one refers to Architecture, and the R.H. one to Natural foliage.

(Architecture) (Natural foliage)

RULES:

Governed by severe Exhibits _apparent_ playful

rules of Repetition, Freedom. There _are_

Axiality, Symmetry, etc., underlying Rules, which

which are apparent to are detected by the scientific

the passer-by. Hence Botanist; but these

Artificial foliage, being are not seen by the casual

regular in its structure, observer.

is more appropriate than

the (apparently) irregular

growth of Natural

foliage.

CHARACTERISTICS:

Rigidity and Stability. Elasticity and Tremulousness

in every breeze.

LINES OF COMPOSITION:

Geometrical lines. In determinate curves,

The geometrical lines which are very subtile,

and spirals of Artificial and varied, and therefore

foliage demand an unmoving suitable to a hanging and

surface for proper view. swaying material.

The curves of Nature

They would generally be spoiled are not spoiled when on a

if not on a plane surface. folded material.

DISTRIBUTION:

Symmetrical. The Balanced. The growth

symmetry of artificial of natural foliage is generally

foliage is appropriate to symmetrical; but

that of Architecture. this is not apparent.

BEAUTY:

Depends on _form_, with More appropriate to objects

color as a secondary adjunct. which depend on _color_ for

their principal charm.

There have been waves of the desire to introduce Natural foliage into

Architecture (e.g. in the "Decorated period" of Gothic architecture);

but the Artificial elements have always proved too strong, and the two

have never mixed. In Architecture, everything has three dimensions;

and the artificial foliage is carved with leaves, etc., of a suitable

thickness: in Natural foliage the tenuity of leaves, etc., is such

that it cannot be reproduced. Even in the architraves round the

glorious doors of Florence the natural foliage is not always a

success; and where Ghiberti has stopped short in the ductile bronze,

it is not probable that the modern carver will succeed in stone. It

may therefore be suggested that the close imitation of Natural foliage

should be confined to objects of _two_ dimensions, i.e., to plane

surfaces and figured materials.

This selection of the Elements of Decoration, according to their

association, is analogous to the selection made use of by the Poet,

from the words and ideas, which are his Materials. It will be observed

that, as on a Classic or Heroic subject, the choice is of learned

words and classical ideas, and on a Domestic or Pastoral one, simple

words and homely similes are used--so, in conjunction with the severe

forms of Architecture, the formal character of artificial foliage is

suitable; and for decorating Textiles and other movable Accessories,

the Natural foliage, with which the earth is clothed and beautified,

is appropriate.

ENRICHMENT OF SURFACE may be beautiful for one reason; IMITATION OF

NATURE is beautiful for another. When imitations of natural foliage

are introduced decoratively on a surface, then may it be twice

beautiful--first, in the _principles_ according to which the

distribution is arranged; and secondly, because of the _elements_

which are worked in being beautiful in themselves. Geometrical

elements might be so used as to serve the first end, but can never

fulfill the second: Storiation fulfills the second; but its increase

of interest absorbs the first.

This course of Lectures is intended to treat of Natural foliage,

leaving Artificial foliage to be dealt with at another opportunity. It

is not Historical. The History of the Decorative treatment of Natural

foliage, showing its evolution in the past, is a large and interesting

theme; but, unless this were accompanied by critical remarks based on

given principles, the method might be barren of results. Tradition is

not to be undervalued; but the student should be led to Tradition

through Principles.

It is further intended more especially to apply to the æsthetic use.

When natural foliage is used Æsthetically (i.e., decoratively), then

the Shape of the surface should govern the Mass shape of the foliage,

and there should be Parallelism between them (see § 29). When used

Didactically (i.e., symbolically), then the foliage may be treated

more freely.

§ 4.--THE FOUR TREATMENTS.

There are, broadly speaking, four methods of treating Natural foliage.

These may be arranged in a Chart, according to their relation to the

two poles of Art and Science; from Realism (which is all Art and no

Science) to the "Botanical Analysis" method (in which is a little

Science but no Art), thus:

The first two of these methods are Artistic and legitimate: the others

are inartistic and misleading. Before treating of the artistic methods

it will be well to clear the ground by dismissing the others.

Scientific American Supplement, No. 829, November 21, 1891 · 第 33 / 66 题