And here I must ask your attention to the idea, and, more than

idea,--the fact, involved in that infinitely misused term,

'Providentia,' when applied to the Divine power. In its truest sense and

scholarly use, it is a human virtue, [Greek: Prometheia]; the personal

type of it is in Prometheus, and all the first power of [Greek: techne],

is from him, as compared to the weakness of days when men without

foresight "[Greek: ephyron eike panta]." But, so far as we use the word

'Providence' as an attribute of the Maker and Giver of all things, it

does not mean that in a shipwreck He takes care of the passengers who

are to be saved, and takes none of those who are to be drowned; but it

_does_ mean that every race of creatures is born into the world under

circumstances of approximate adaptation to its necessities; and, beyond

all others, the ingenious and observant race of man is surrounded with

elements naturally good for his food, pleasant to his sight, and

suitable for the subjects of his ingenuity;--the stone, metal, and clay

of the earth he walks upon lending themselves at once to his hand, for

all manner of workmanship.

150. Thus, his truest respect for the law of the entire creation is

shown by his making the most of what he can get most easily; and there

is no virtue of art, nor application of common sense, more sacredly

necessary than this respect to the beauty of natural substance, and the

ease of local use; neither are there any other precepts of construction

so vital as these--that you show all the strength of your material,

tempt none of its weaknesses, and do with it only what can be simply and

permanently done.

151. Thus, all good building will be with rocks, or pebbles, or burnt

clay, but with no artificial compound; all good painting with common

oils and pigments on common canvas, paper, plaster, or wood,--admitting

sometimes, for precious work, precious things, but all applied in a

simple and visible way. The highest imitative art should not, indeed, at

first sight, call attention to the means of it; but even that, at

length, should do so distinctly, and provoke the observer to take

pleasure in seeing how completely the workman is master of the

particular material he has used, and how beautiful and desirable a

substance it was, for work of that kind. In oil painting, its unctuous

quality is to be delighted in; in fresco, its chalky quality; in glass,

its transparency; in wood, its grain; in marble, its softness; in

porphyry, its hardness; in iron, its toughness. In a flint country, one

should feel the delightfulness of having flints to pick up, and fasten

together into rugged walls. In a marble country, one should be always

more and more astonished at the exquisite color and structure of

marble; in a slate country, one should feel as if every rock cleft

itself only for the sake of being built with conveniently.

152. Now, for sculpture, there are, briefly, two materials--Clay, and

Stone; for glass is only a clay that gets clear and brittle as it cools,

and metal a clay that gets opaque and tough as it cools. Indeed, the

true use of gold in this world is only as a very pretty and very ductile

clay, which you can spread as flat as you like, spin as fine as you

like, and which will neither crack nor tarnish.

All the arts of sculpture in clay may be summed up under the word

'Plastic,' and all of those in stone, under the word 'Glyptic.'

153. Sculpture in clay will accordingly include all cast brickwork,

pottery, and tile-work[31]--a somewhat important branch of human skill.

Next to the potter's work, you have all the arts in porcelain, glass,

enamel, and metal,--everything, that is to say, playful and familiar in

design, much of what is most felicitously inventive, and, in bronze or

gold, most precious and permanent.

154. Sculpture in stone, whether granite, gem, or marble, while we

accurately use the general term 'glyptic' for it, may be thought of

with, perhaps, the most clear force under the English word 'engraving.'

For, from the mere angular incision which the Greek consecrated in the

triglyphs of his greatest order of architecture, grow forth all the arts

of bas-relief, and methods of localized groups of sculpture connected

with each other and with architecture: as, in another direction, the

arts of engraving and wood-cutting themselves.

155. Over all this vast field of human skill the laws which I have

enunciated to you rule with inevitable authority, embracing the

greatest, and consenting to the humblest, exertion; strong to repress

the ambition of nations, if fantastic and vain, but gentle to approve

the efforts of children, made in accordance with the visible intention

of the Maker of all flesh, and the Giver of all Intelligence. These

laws, therefore, I now repeat, and beg of you to observe them as

irrefragable.

1. That the work is to be with tools of men.

2. That it is to be in natural materials.

3. That it is to exhibit the virtues of those materials, and aim at no

quality inconsistent with them.

4. That its temper is to be quiet and gentle, in harmony with common

needs, and in consent to common intelligence.

We will now observe the bearing of these laws on the elementary

conditions of the art at present under discussion.

156. There is, first, work in baked clay, which contracts, as it dries,

and is very easily frangible. Then you must put no work into it

requiring niceness in dimension, nor any so elaborate that it would be a

great loss if it were broken; but as the clay yields at once to the

hand, and the sculptor can do anything with it he likes, it is a

material for him to sketch with and play with,--to record his fancies

in, before they escape him,--and to express roughly, for people who can

enjoy such sketches, what he has not time to complete in marble. The

clay, being ductile, lends itself to all softness of line; being easily

frangible, it would be ridiculous to give it sharp edges, so that a

blunt and massive rendering of graceful gesture will be its natural

function: but as it can be pinched, or pulled, or thrust in a moment

into projection which it would take hours of chiseling to get in stone,

it will also properly be used for all fantastic and grotesque form, not

involving sharp edges. Therefore, what is true of chalk and charcoal,

for painters, is equally true of clay, for sculptors; they are all most

precious materials for true masters, but tempt the false ones into fatal

license; and to judge rightly of terra-cotta work is a far higher reach

of skill in sculpture-criticism than to distinguish the merits of a

finished statue.

157. We have, secondly, work in bronze, iron, gold, and other metals;

in which the laws of structure are still more definite.

All kinds of twisted and wreathen work on every scale become delightful

when wrought in ductile or tenacious metal; but metal which is to be

_hammered_ into form separates itself into two great divisions--solid,

and flat.

A. In solid metal-work, _i.e._, metal cast thick enough to resist

bending, whether it be hollow or not, violent and various projection may

be admitted, which would be offensive in marble; but no sharp edges,

because it is difficult to produce them with the hammer. But since the

permanence of the material justifies exquisiteness of workmanship,

whatever delicate ornamentation can be wrought with rounded surfaces may

be advisedly introduced; and since the color of bronze or any other

metal is not so pleasantly representative of flesh as that of marble, a

wise sculptor will depend less on flesh contour, and more on picturesque

accessories, which, though they would be vulgar if attempted in stone,

are rightly entertaining in bronze or silver. Verrocchio's statue of

Colleone at Venice, Cellini's Perseus at Florence, and Ghiberti's gates

at Florence, are models of bronze treatment.

B. When metal is beaten thin, it becomes what is technically called

'plate,' (the _flattened_ thing,) and may be treated advisably in two

ways: one, by beating it out into bosses, the other by cutting it into

strips and ramifications. The vast schools of goldsmiths' work and of

iron decoration, founded on these two principles, have had the most

powerful influences over general taste in all ages and countries. One of

the simplest and most interesting elementary examples of the treatment

of flat metal by cutting is the common branched iron bar, Fig. 8, used

to close small apertures in countries possessing any good primitive

style of ironwork, formed by alternate cuts on its sides, and the

bending down of the severed portions. The ordinary domestic window

balcony of Verona is formed by mere ribbons of iron, bent into curves as

studiously refined as those of a Greek vase, and decorated merely by

their own terminations in spiral volutes.

All cast work in metal, unfinished by hand, is inadmissible in any

school of living art, since it cannot possess the perfection of form due

to a permanent substance; and the continual sight of it is destructive

of the faculty of taste: but metal stamped with precision, as in coins,

is to sculpture what engraving is to painting.

158. Thirdly. Stone-sculpture divides itself into three schools: one in

very hard material; one in very soft; and one in that of centrally

useful consistence.

[Illustration: FIG. 8.]

A. The virtue of work in hard material is the expression of form in

shallow relief, or in broad contours: deep cutting in hard material is

inadmissible; and the art, at once pompous and trivial, of gem

engraving, has been in the last degree destructive of the honor and

service of sculpture.

B. The virtue of work in soft material is deep cutting, with studiously

graceful disposition of the masses of light and shade. The greater

number of flamboyant churches of France are cut out of an adhesive

chalk; and the fantasy of their latest decoration was, in great part,

induced by the facility of obtaining contrast of black space, undercut,

with white tracery easily left in sweeping and interwoven rods--the

lavish use of wood in domestic architecture materially increasing the

habit of delight in branched complexity of line. These points, however,

I must reserve for illustration in my Lectures on Architecture. To-day,

I shall limit myself to the illustration of elementary sculptural

structure in the best material,--that is to say, in crystalline marble,

neither soft enough to encourage the caprice of the workman, nor hard

enough to resist his will.

159. C. By the true 'Providence' of Nature, the rock which is thus

submissive has been in some places stained with the fairest colors, and

in others blanched into the fairest absence of color that can be found

to give harmony to inlaying, or dignity to form. The possession by the

Greeks of their [Greek: leukos lithos] was indeed the first circumstance

regulating the development of their art; it enabled them at once to

express their passion for light by executing the faces, hands, and feet

of their dark wooden statues in white marble, so that what we look upon

only with pleasure for fineness of texture was to them an imitation of

the luminous body of the deity shining from behind its dark robes; and

ivory afterwards is employed in their best statues for its yet more soft

and flesh-like brightness, receptive also of the most delicate

color--(therefore to this day the favorite ground of miniature

painters). In like manner, the existence of quarries of peach-colored

marble within twelve miles of Verona, and of white marble and green

serpentine between Pisa and Genoa, defined the manner both of sculpture

and architecture for all the Gothic buildings of Italy. No subtlety of

education could have formed a high school of art without these

materials.

160. Next to the color, the fineness of substance which will take a

perfectly sharp edge, is essential; and this not merely to admit fine

delineation in the sculpture itself, but to secure a delightful

precision in placing the blocks of which it is composed. For the

possession of too fine marble, as far as regards the work itself, is a

temptation instead of an advantage to an inferior sculptor; and the

abuse of the facility of undercutting, especially of undercutting so as

to leave profiles defined by an edge against shadow, is one of the chief

causes of decline of style in such incrusted bas-reliefs as those of the

Certosa of Pavia and its contemporary monuments. But no undue temptation

ever exists as to the fineness of block fitting; nothing contributes to

give so pure and healthy a tone to sculpture as the attention of the

builder to the jointing of his stones; and his having both the power to

make them fit so perfectly as not to admit of the slightest portion of

cement showing externally, and the skill to insure, if needful, and to

suggest always, their stability in cementless construction. Plate X.

represents a piece of entirely fine Lombardic building, the central

portion of the arch in the Duomo in Verona, which corresponds to that of

the porch of San Zenone, represented in Plate I. In both these pieces of

building, the only line that traces the architrave round the arch, is

that of the masonry joint; yet this line is drawn with extremest

subtlety, with intention of delighting the eye by its relation of varied

curvature to the arch itself; and it is just as much considered as the

finest pen-line of a Raphael drawing. Every joint of the stone is used,

in like manner, as a thin black line, which the slightest sign of cement

would spoil like a blot. And so proud is the builder of his fine

jointing, and so fearless of any distortion or strain spoiling the

adjustment afterwards, that in one place he runs his joint quite

gratuitously through a bas-relief, and gives the keystone its only sign

of preeminence by the minute inlaying of the head of the Lamb into the

stone of the course above.

161. Proceeding from this fine jointing to fine draughtsmanship, you

have, in the very outset and earliest stage of sculpture, your flat

stone surface given you as a sheet of white paper, on which you are

required to produce the utmost effect you can with the simplest means,

cutting away as little of the stone as may be, to save both time and

trouble; and above all, leaving the block itself, when shaped, as solid

as you can, that its surface may better resist weather, and the carved

parts be as much protected as possible by the masses left around them.

[Illustration: X.

MARBLE MASONRY IN THE DUOMO OF VERONA.]

[Illustration: XI.

THE FIRST ELEMENTS OF SCULPTURE.

INCISED OUTLINE AND OPENED SPACE.]

162. The first thing to be done is clearly to trace the outline of

subject with an incision approximating in section to that of the furrow

of a plow, only more equal-sided. A fine sculptor strikes it, as his

chisel leans, freely, on marble; an Egyptian, in hard rock, cuts it

sharp, as in cuneiform inscriptions. In any case, you have a result

somewhat like the upper figure, Plate XI., in which I show you the most

elementary indication of form possible, by cutting the outline of the

typical archaic Greek head with an incision like that of a Greek

triglyph, only not so precise in edge or slope, as it is to be modified

afterwards.

163. Now, the simplest thing we can do next is to round off the flat

surface _within_ the incision, and put what form we can get into the

feebler projection of it thus obtained. The Egyptians do this, often

with exquisite skill, and then, as I showed you in a former Lecture,

color the whole--using the incision as an outline. Such a method of

treatment is capable of good service in representing, at little cost of

pains, subjects in distant effect; and common, or merely picturesque,

subjects even near. To show you what it is capable of, and what colored

sculpture would be in its rudest type, I have prepared the colored

relief of the John Dory[32] as a natural history drawing for distant

effect. You know, also, that I meant him to be ugly--as ugly as any

creature can well be. In time, I hope to show you prettier

things--peacocks and kingfishers, butterflies and flowers,--on grounds

of gold, and the like, as they were in Byzantine work. I shall expect

you, in right use of your aesthetic faculties, to like those better than

what I show you to-day. But it is now a question of method only; and if

you will look, after the Lecture, first at the mere white relief, and

then see how much may be gained by a few dashes of color, such as a

practiced workman could lay in a quarter of an hour,--the whole

forming, if well done, almost a deceptive image,--you will, at least,

have the range of power in Egyptian sculpture clearly expressed to you.

164. But for fine sculpture, we must advance by far other methods. If we

carve the subject with real delicacy, the cast shadow of the incision

will interfere with its outline, so that, for representation of

beautiful things you must clear away the ground about it, at all events

for a little distance. As the law of work is to use the least pains

possible, you clear it only just as far back as you need, and then, for

the sake of order and finish, you give the space a geometrical outline.

By taking, in this case, the simplest I can,--a circle,--I can clear the

head with little labor in the removal of surface round it; (see the

lower figure in Plate XI.)

165. Now, these are the first terms of all well-constructed bas-relief.

The mass you have to treat consists of a piece of stone which, however

you afterwards carve it, can but, at its most projecting point, reach

the level of the external plane surface out of which it was mapped, and

defined by a depression round it; that depression being at first a mere

trench, then a moat of a certain width, of which the outer sloping bank

is in contact, as a limiting geometrical line, with the laterally

salient portions of sculpture. This, I repeat, is the primal

construction of good bas-relief, implying, first, perfect protection to

its surface from any transverse blow, and a geometrically limited space

to be occupied by the design, into which it shall pleasantly (and as you

shall ultimately see, ingeniously,) contract itself: implying, secondly,

a determined depth of projection, which it shall rarely reach, and never

exceed: and implying, finally, the production of the whole piece with

the least possible labor of chisel and loss of stone.

166. And these, which are the first, are very nearly the last

constructive laws of sculpture. You will be surprised to find how much

they include, and how much of minor propriety in treatment their

observance involves.

In a very interesting essay on the architecture of the Parthenon, by

the Professor of Architecture of the Ecole Polytechnique, M. Emile

Boutmy, you will find it noticed that the Greeks do not usually weaken,

by carving, the constructive masses of their building; but put their

chief sculpture in the empty spaces between the triglyphs, or beneath

the roof. This is true; but in so doing, they merely build their panel

instead of carving it; they accept, no less than the Goths, the laws of

recess and limitation, as being vital to the safety and dignity of their

design; and their noblest recumbent statues are, constructively, the

fillings of the acute extremity of a panel in the form of an obtusely

summited triangle.

167. In gradual descent from that severest type, you will find that an

immense quantity of sculpture of all times and styles may be generally

embraced under the notion of a mass hewn out of, or, at least, placed

in, a panel or recess, deepening, it may be, into a niche; the sculpture

being always designed with reference to its position in such recess:

and, therefore, to the effect of the building out of which the recess is

hewn.

But, for the sake of simplifying our inquiry, I will at first suppose no

surrounding protective ledge to exist, and that the area of stone we

have to deal with is simply a flat slab, extant from a flat surface

depressed all round it.

168. A _flat_ slab, observe. The flatness of surface is essential to the

problem of bas-relief. The lateral limit of the panel may, or may not,

be required; but the vertical limit of surface _must_ be expressed; and

the art of bas-relief is to give the effect of true form on that

condition. For observe, if nothing more were needed than to make first a

cast of a solid form, then cut it in half, and apply the half of it to

the flat surface;--if, for instance, to carve a bas-relief of an apple,

all I had to do was to cut my sculpture of the whole apple in half, and

pin it to the wall, any ordinarily trained sculptor, or even a

mechanical workman, could produce bas-relief; but the business is to

carve a _round_ thing out of a _flat_ thing; to carve an apple out of a

biscuit!--to conquer, as a subtle Florentine has here conquered,[33]

his marble, so as not only to get motion into what is most rigidly

fixed, but to get boundlessness into what is most narrowly bounded; and

carve Madonna and Child, rolling clouds, flying angels, and space of

heavenly air behind all, out of a film of stone not the third of an inch

thick where it is thickest.

169. Carried, however, to such a degree of subtlety as this, and with so

ambitious and extravagant aim, bas-relief becomes a tour-de-force; and,

you know, I have just told you all tours-de-force are wrong. The true

law of bas-relief is to begin with a depth of incision proportioned

justly to the distance of the observer and the character of the subject,

and out of that rationally determined depth, neither increased for

ostentation of effect, nor diminished for ostentation of skill, to do

the utmost that will be easily visible to an observer, supposing him to

give an average human amount of attention, but not to peer into, or

critically scrutinize, the work.

170. I cannot arrest you to-day by the statement of any of the laws of

sight and distance which determine the proper depth of bas-relief.

Suppose that depth fixed; then observe what a pretty problem, or,

rather, continually varying cluster of problems, will be offered to us.

You might, at first, imagine that, given what we may call our scale of

solidity, or scale of depth, the diminution from nature would be in

regular proportion, as, for instance, if the real depth of your subject

be, suppose, a foot, and the depth of your bas-relief an inch, then the

parts of the real subject which were six inches round the side of it

would be carved, you might imagine, at the depth of half an inch, and so

the whole thing mechanically reduced to scale. But not a bit of it. Here

is a Greek bas-relief of a chariot with two horses (upper figure, Plate

XXI.) Your whole subject has therefore the depth of two horses side by

side, say six or eight feet. Your bas-relief has, on this scale,[34] say

the depth of a third of an inch. Now, if you gave only the sixth of an

inch for the depth of the off horse, and, dividing him again, only the

twelfth of an inch for that of each foreleg, you would make him look a

mile away from the other, and his own forelegs a mile apart. Actually,

the Greek has made the _near leg of the off horse project much beyond

the off leg of the near horse_; and has put nearly the whole depth and

power of his relief into the breast of the off horse, while for the

whole distance from the head of the nearest to the neck of the other, he

has allowed himself only a shallow line; knowing that, if he deepened

that, he would give the nearest horse the look of having a thick nose;

whereas, by keeping that line down, he has not only made the head itself

more delicate, but detached it from the other by giving no cast shadow,

and left the shadow below to serve for thickness of breast, cutting it

as sharp down as he possibly can, to make it bolder.

171. Here is a fine piece of business we have got into!--even supposing

that all this selection and adaptation were to be contrived under

constant laws, and related only to the expression of given forms. But

the Greek sculptor, all this while, is not only debating and deciding

how to show what he wants, but, much more, debating and deciding what,

as he can't show everything, he will choose to show at all. Thus, being

himself interested, and supposing that you will be, in the manner of the

driving, he takes great pains to carve the reins, to show you where they

are knotted, and how they are fastened round the driver's waist, (you

recollect how Hippolytus was lost by doing that); but he does not care

the least bit about the chariot, and having rather more geometry than he

likes in the cross and circle of one wheel of it, entirely omits the

other!

Aratra Pentelici, Seven Lectures on the Elements of Sculpture Given before the University of Oxford in Michaelmas Term, 1870 · 第 8 / 13 段