The drawing representing a _Misty Day at Bolt Head_ was made upon

common rough paper, such as is usually found in sailors’ log-books; in

fact, it was a log-book the present writer used during the greater part

of a tour in Devon, nothing else being obtainable in those parts save

the cloth-bound, gold-lettered sketch-books whose porterage convicts

one at once of amateurishness. And here let me say that a sailor’s

log-book, though decidedly an unconventional medium for sketching in,

seems to be entirely admirable. The paper takes pencil excellently

well, and the faint blue parallel lines with which the pages are ruled

need bother no one; they will not (being blue) reproduce. To save

the freshness of the impression, the sketch was lightly finished in

ink, and sent for reproduction uncleaned. The illustration shows the

result. It is an example of the bitumen process, whose original sin

of exaggerating all the pencil marks which it has been good enough to

reproduce at all is partly cloaked by the intervention of hand-work all

over the block. You can see how continually the graver has been put

through the lines to produce a greyness, yet how unsatisfactory the

result!

The drawing was now sent for reproduction by the swelled gelatine

process. The result is a much more satisfactory block. Everything that

the original contained has been reproduced. The sullen blacknesses of

the pinnacled rocks are nothing extenuated, as they were in the first

example, where they seem comparatively insignificant, and the technical

qualities of pen and pencil are retained throughout, and can readily

be identified. The same remarks apply even more strongly to the small

blocks from the _Note at Gorran_.

[Illustration: _Pen and pencil drawing, reproduced by bitumen

process._]

[Illustration: 13¼ × 9½. A NOTE AT GORRAN.

_Pen and pencil drawing, reproduced by swelled gelatine process._]

But such a pure pen-drawing as that of _Charlwood_, shown here in

blocks by (1) Messrs. Dawson’s swelled gelatine process, and (2) by Mr.

Chefdeville’s sympathetic handling of the albumen process, would have

come almost equally well by bitumen, or by an ordinary practitioner’s

treatment of albumen. It offered no technical difficulties, and there

is exceedingly little to choose between these two blocks. Careful

examination would show that a very slight thickening of line had taken

place throughout the block by the gelatine method, and this must ever

be the distinguishing difference between that process and those in

which acids are used to eat away the metal of the block—that the

gelatine renders at its best every jot and tittle of a drawing, and

would by the nature of the process rather exaggerate than diminish; and

that in those processes in which acids play a part, the process-man

must be ever watchful lest his zinc plate be “over-etched”—lest the

upstanding metal lines be eaten away to a scratchy travesty of the

original drawing. But you will see that although the lines in the

swelled gelatine _Charlwood_ are appreciably thicker than in its

albumen fellow, yet the latter prints darker. The explanation is in the

metals of which the two blocks are composed. Zinc prints more heavily

than copper.

[Illustration: _Pen-drawing reproduced by swelled gelatine

process._]

[Illustration: 8¼ × 6¼.

_Pen-drawing reproduced by Chefdeville._]

It should not be forgotten that, to-day, hand-work upon process-blocks

is become very usual. To paraphrase a well-worn political catch-phrase,

the old methods have been called in to redress the vagaries of the

new: the graver has been retained to correct the crudities of the

rocking-bath. To be less cryptic, the graver is used nowadays to

tone down the harsh and ragged edges of the etched zinc. Here is an

illustration that will convey the idea to perfection. Here is, in this

_View from the Tower Bridge Works_, a zincographic block, grounded

with bitumen and etched by the aid of acids. The original drawing was

made upon Bristol-board, with Stephens’ ebony stain, and an F nib of

Mitchell’s make. The size of that drawing was twelve and a half inches

across; the sky drawn in with much elaboration. A first proof showed a

sky harsh and wanting in aërial perspective. A graver was put through

it, cutting up the lines into dots, and thus putting the sky into

proper relation with the rest of the picture.

Another interesting and suggestive comparison is between photogravure,

or heliogravure, as it is sometimes called, and type-printing processes

for the reproduction of line. The frontispiece to this volume is a

heliogravure plate by Dujardin, of Paris, from a pen-drawing that

offered no obstacles to adequate reproduction by the bitumen process.

In fact, you see it here, reproduced in that way, and of the same size.

The copper intaglio plate is in every way superior to the relief block,

as might have been expected. The hardness of the latter method gives

way, in the heliogravure plate, to a delightful softness, even when the

plate is clean-wiped and printed in as bald and artless a fashion as

a tradesman’s business card; but now it is printed with care and with

the _retroussage_ that is generally the meed of the etching, you could

not have distinguished it _from_ an etching had you not been told its

history.

[Illustration: 12½ × 9. VIEW FROM THE TOWER BRIDGE WORKS.

_Bitumen process._]

[Illustration: 12½ × 9. VIEW FROM THE TOWER BRIDGE WORKS.

_Bitumen process. Sky revised by hand-work._]

The procedure in making a heliogravure is in this wise:—A copper

plate, similar to the kind used by etchers, receives a ground of

bichromatized bitumen. A photograph is taken of the drawing to be

reproduced, and from the negative thus obtained a _positive_ is made.

The positive, in reverse, is placed upon the grounded plate and printed

upon it. The bitumen which has been printed upon by the action of light

is thus rendered wholly insoluble, and the image of the drawing remains

the only soluble portion of the ground. The plate is then treated with

turpentine, and the soluble lines thus dissolved. Follows then the

ordinary etching procedure. This is a more simple and ready process

than the making of a relief block. It is, however, more expensive to

commission, but then expense never is any criterion of original cost.

The printing, though, is a heavy item, because, equally with etchings

or mezzotints, it must be printed upon a copper-plate press, and

this involves the cleaning and the re-inking of the plate with every

impression.

The subject which the present plate bears does not show the utmost

capabilities of the heliogravure. It was chosen as a fair example

to show the difference between two methods without straining the

limitations of the relief block. But if the drawing had been most

carefully graduated in intensity from the deepest black to the palest

brown, the copper plate would have shown everything with perfect

ease. Large editions of these plates are not to be printed without

injury, because the constant wiping of the soft copper wears down the

surface. But to obviate this defect a process of _acierage_ has been

invented, by which a coating of iron is electrically deposited upon the

surface of the plate, rendering it, practically, as durable as a steel

engraving.

[Illustration: 11½ × 7½. KENSINGTON PALACE.

_Bitumen process._]

It is by experiments we learn to achieve distinction; by immediate

failure that we rise to ultimate success; and ofttimes by pure chance

that we discover in these days some new trick of method by which

process shall do for the illustrator something it has not done before.

There is still, no doubt, in the memory of many, that musty anecdote of

the painter who, fumbling over the proper rendering of foam, applied

by some accident a sponge to the wet paint, and lo! there, by happy

chance, was the foam which had before been like nothing so much as wool.

[Illustration: SNODGRASS FARM.

_From a drawing by Harry Fenn. An example of splatter-work._]

In the same way, I suppose, some draughtsman discovered splatter-work.

He may readily be imagined, prior to this lucky chance, painfully

stippling little dots with his pen; pin-points of ink stilted and

formal in effect when compared with the peculiarly informal concourse

of spots produced by taking a small, stiff-bristled brush (say a

toothbrush), inking it, and then, holding the bristles downwards and

inclining toward the drawing, more or less vigorously stroking the inky

bristles _towards_ one with a match-stick. Holding the brush thus, and

stroking it in this way, the bristles send a shower of ink spots upon

the drawing. Of course this trick requires an extended practice before

it can be performed in workmanlike fashion, and even then the parts not

required to be splattered have to be carefully covered with cut-paper

masks. [_Mem._—To use a fixed ink for drawings on which you intend to

splatter, because it is extremely probable that you will require to

paint some portions out with Chinese white, and Chinese white upon any

inks that are not fixed is the despair of the draughtsman.] Here is

an excellent example of splatter. It is by that resourceful American

draughtsman, Harry Fenn. Indeed, the greatest exponents of this method

are Americans: few men in this country have rendered it with any

frequency, or with much advantage. I have essayed its use to aid this

sunset view of _Black Rock_, and to me it seems to come well. But the

finer spots are very difficult of reproduction; some are lost here.

There is a most ingenious contrivance, an American notion, I believe,

for the better application of splatter. It is called the air-brush, and

it consists of a tube filled with ink, and fitted with a description of

nozzle through which the ink is projected on to paper by a pneumatic

arrangement worked by the artist by means of a treadle. You aim the

affair at your drawing, work your treadle, and the trick is done. The

splatter is remarkably fine and equable, and its intensity can be

regulated by the distance at which the nozzle is held from the drawing.

The greater advantage, however, in the use of the air-brush would seem

to lie with the lithographic draughtsmen, who have to cover immense

areas of work.

[Illustration: 6 × 8¼. SUNSET, BLACK ROCK.

_Splatter-work._]

Here follows an experiment with diluted inks: the drawing made upon

HP Whatman with all manner of nibs. It is all pen-work, worked with

black stain, and with writing ink watered down to different values.

This is an attempt to render as truthfully as possible (and as

unconventionally) the sunset shine and shadow of a lonely shore, blown

upon with the wild winds of the Channel. A little stream, overgrown

with bents and waving rushes, flows between a break in the low cliffs

and loses itself in the sands. The sun sets behind the ruined house,

and between it and the foreground is a clump of storm-bent trees,

constrained to their uneasy inward pose not by present breezes, but to

this shrinking habit of growth by long-continued stress of weather.

The block is by Gillot, of Paris, who was asked to get the appearance

of the original drawing in a line-block. This he has not altogether

succeeded in doing: perhaps it was impossible; but the _feeling_ is

here. It is a line-block, rouletted all over in the attempt to get

the effect produced by watered inks. The roulettes, by which these

greynesses are produced, are peculiar instruments, consisting of

infinitesimal wheels of hard steel whose edges are fashioned into

microscopically small points or facets. Mounted at the end of a stick

more nearly resembling a penholder than anything else, the wheel is

driven along (and into) the surface of the metal by pressure, making

small indentations in it. There are varieties of roulettes, the

differences between them lying in the patterns of the projections from

the wheel. The varieties in the texture of rouletting seen in this

print are thus explained.

[Illustration: 10 × 6½. DRAWING IN DILUTED INKS, REPRODUCED BY GILLOT.

_Block touched up by hand and freely rouletted._]

Now come some experiments in mixtures. The mixed drawing has many

possibilities of artistic expression, and here are some essays in

mixtures, harnessed to tentative employments of process.

First is this experiment in pen and pencil reproduced in half-tone.

It is a view of _Chepstow Castle_—that really picturesque old border

fortress—from across the river Wye, a river that comes rushing down

from the uplands with an impetuous current full of swirls and eddies.

The town of Chepstow lies at the back, represented in this drawing

only by its lights. The huts and sheds that straggle down to the

waterside, and the rotting pier, where small vessels load and unload

insignificant cargoes, are commonplace enough, but they go to make a

fine composition; and the last sunburst in the evening sky, the stars

already brilliant, and the white gleams from the hurrying river, are

immensely valuable, and things of joy to the practitioner in black and

white. Rain had fallen during the day, and, when the present writer sat

down to sketch, still lent a fine impending juicy air to the scene that

seemed incapable of adequate translation into pure line; therefore,

upon the pencil sketch was added pen-work, and to that more pencil,

and, when finished, the drawing was sent to be processed, with special

instructions that the white spaces in the sky should be preserved,

together with those on the buildings, but that all else might acquire

the light grey tint which the half-tone always gives, as of a drawing

made upon paper of a silvery grey. In the result you can see this

purely arbitrary, but delightful, ground tint everywhere; it gives

absolutely the appearance of a drawing made upon tinted cardboard, but,

truly, the only paper employed was a common, rough make, that would be

despised of the lordly amateur. Here you see the half-tone process on

its best behaviour, and I think it has secured a very notable result.

[Illustration: 11¾ × 8¾. CHEPSTOW CASTLE.

_Drawing in pen and ink and pencil made on rough paper. Reproduced by

half-tone process._]

Here is another experiment, _Clifford’s Inn: a Foggy Night_—a mixture

of pen and ink and crayon worked upon with a stump, and then lightly

brushed over with a damp, not a full, brush; the lights in the windows

and the reflections taken out with the point of an eraser.

It should be said that in drawing thus for half-tone reproduction the

drawing should be made much more emphatic than the print is intended

to appear; that is to say, the deepest shadows should be given an

additional depth, and the fainter shading should be a shade lighter

than you would give to a drawing not made with a view to publication.

If these points are not borne in mind, the result is apt to be flat and

featureless.

If a half-tone block exhibits these disagreeable peculiarities, high

lights can always be created by the aid of a chisel used upon the metal

surface of the block. The more important process firms generally employ

a staff of competent engravers, who, now that wood engraving is less

widely used, have turned their attention to just this kind of work—the

correcting of process-blocks. The artist has but to mark his proof with

the corrections and alterations he requires. The two illustrations

shown on page 68, from different states of the same block, give a

notion of correcting the flatness of half-tone. The second block shows

a good deal of retouching in the lights taken out upon the paper and

the jug, and in the hatching upon the drinking-horn.

[Illustration: 9½ × 6¾. CLIFFORD’S INN: A FOGGY NIGHT.

_Drawn in pen and ink and crayon, and brushed over. Reproduced by

half-tone process, medium grain._]

Half-tone processes are practised in much the same way as the albumen

and bitumen line methods already described, in so far as that they are

worked with acids and upon zinc or copper. At first these half-tone

blocks were made in zinc, but recently some reproductive firms have

preferred to use copper. Messrs. Waterlow and Sons, in this country,

generally employ copper for half-tone blocks from drawings or

photographs. Copper prints a softer and more sympathetic line, and

does not accumulate dirt so readily as zinc. All the half-tone blocks

in this volume are in copper. By these processes the photographs

that one sees reproduced direct from nature appear in print without

the aid of the artist. They are often referred to as the Meisenbach

process, because the Meisenbach Company was amongst the first to use

these methods in this country. The essential difference in their

working is that there is a ruled screen of glass interposed between

the drawing or object to be photographed and the negative. Generally a

screen of glass is closely ruled with lines crossing at right angles,

and etched with hydrofluoric acid. Into the grooves thus produced,

printing-ink is rubbed. The result is a close network of black lines

upon glass. This screen, interposed between the sensitized plate

in the camera and the object to be photographed, produces upon the

negative the criss-cross appearance we see in the ultimate picture.

In the half-tone reproductions by Angerer and Göschl, of Vienna, this

appearance is singularly varied. The screen used by them is said to be

made from white silk of the gauziest description, hung before a wall

covered with black velvet in such a manner that the blackness of the

velvet can be seen and photographed through the silken film. A negative

is made, and from it a positive is produced, which exhibits a curiously

varied arrangement of dots and meshes. The positive is used in the same

way as the ruled-glass screens.

[Illustration: 6¾ × 6¼. PENCIL AND PEN AND INK DRAWING REPRODUCED BY

HALF-TONE PROCESS.]

The network characteristic of half-tone relief blocks can be made fine,

or medium, or coarse, as required. The fine-grained blocks are used for

careful book and magazine printing, and the medium-grained for printing

in the better illustrated weeklies; the coarse-grained are used for

rougher printing, but still are nearly always too fine for newspaper

work. The _Daily Graphic_, however, has solved the problem of printing

them sufficiently well for the picture to be discerned. Beyond this the

rotary steam-printing press has not yet advanced.

In appearance somewhat similar to a half-tone block, but with the

tint differently applied, is the illustration of _The Village Street,

Tintern: Night_. Here is a pure pen-drawing, scratched and scribbled

to blackness without much care for finesse, the great reduction and

the tint being reckoned upon to assuage all angularities. The original

drawing was then lightly scribbled over with blue pencil to indicate to

the process-man that a mechanical tint was required to be applied upon

the block, and word was specially sent that the tint was to be squarely

cut, not vignetted. The result seems happy. This is a line block, not

tone.

[Illustration: 11½ × 9. THE VILLAGE STREET, TINTERN. NIGHT.

_Application of shading medium._]

In such a case the procedure is normal until the image is printed upon

the sensitized ground of the zinc plate. Then the prescribed tint

is transferred by pressure of thumb and fingers, or by means of a

burnisher, from an engraved sheet of gelatine previously inked with a

printing roller. The zinc plate is then etched in the familiar way.

[Illustration: 11½ × 8¾. LEEBOTWOOD.

_Showing application of shading medium to treatment of sky._]

These tints are produced by Day’s shading mediums; thin sheets of

gelatine engraved upon one side with lines or with a pattern of

stipple. There are very many of these patterns. They can readily be

applied, and with the greatest accuracy, because the gelatine is

semi-transparent, and admits of the operator seeing what he is about.

These mechanical tints are capable of exquisite application, but

they have been more frequently regarded as labour-saving appliances,

and have rarely been used with skill, and so have come to bear an

altogether unmerited stigma. They can be used by a clever process-man,

under the directions of the draughtsman, with great effect, and in

remarkably diverse ways. For it is not at all necessary that the tint

should come all over the block. It can be worked in most intricately.

The illustration, _Leebotwood_, shows an application of shading medium

to the sky. The proprietors (for it is a patent) of these devices

have endeavoured to introduce their use amongst artists, with a view

to their working the mediums upon the drawings themselves. It has

been shown that the varieties of shading to be obtained by shifting

and transposing the gelatine plates is illimitable, but as their use

involves establishing a printing roller and printer’s ink in one’s

studio, and as all artists are not printers born, it does not seem at

all likely that Day’s shading mediums will be used outside lithographic

offices or the offices of reproductive firms.

Here are appended some examples of the shading mediums commonly used.

The cost of reproduction by process varies very greatly. It is always

calculated at so much the square inch, with a minimum charge ranging,

for line-work, from two-and-sixpence to five shillings. For half-tone

the minimum may be put at from ten shillings to sixteen shillings.

Plain line blocks, by the bitumen or albumen processes, cost from

twopence-halfpenny to sixpence per square inch, and handwork upon the

block is charged extra. Some firms make a charge of one penny per

square inch for the application of Day’s shading mediums. Line blocks

by the swelled gelatine process are charged at one shilling per square

inch, and reproductions of pencil or crayon work at one-and-threepence.

Half-tone blocks from objects, photographs, or drawings range from

eightpence to one-and-sixpence per square inch, and the cost of a

photogravure plate may be put at two-and-sixpence for the same unit.

The best work in any photographic process is infinitely less costly

than wood engraving, which, although its cost is not generally

calculated on the basis of the inch, as in all process work, may range

approximately from three shillings to five shillings for engraving of

average merit.

[Illustration: EXAMPLES OF DAY’S SHADING MEDIUMS.]

[Illustration: EXAMPLES OF DAY’S SHADING MEDIUM.]

[Illustration: CHURCHYARD CROSS, RAGLAN.

_Application of shading medium._]

Electrotype copies of line blocks cost from three-farthings to

three-halfpence per square inch, and from half-tone blocks, twopence,

although it is not advisable to have electrotypes taken of these fine

and delicate blocks. If duplicates are wanted of half-tones, the usual

practice is to have two original blocks made, the process-engraver

charging for the second block half the price of the first.

PAPER.

The process engraver will tell you, if you seek counsel of him, that

you should use Bristol-board, and of that only the smoothest and most

highly finished varieties. But, however easy it may render his work

of reproduction, there is no necessity for you to draw upon cardboard

or smooth-surfaced paper at all. Paper of a reasonable whiteness

is, of course, necessary to any process of line engraving which has

photography as a basis, but to say that stiff cardboards or papers of

a blue-white, as opposed to the cream-laid variety, are necessary is

merely to obscure what is, after all, a simple matter.

Bristol-board is certainly a very favourite material, and the varieties

of cardboards sold under that name are numerous enough to please

anybody. Goodall’s sell as reliable a make as can be readily found. It

is white enough to please the photo-engraver, and of a smooth, hard

surface; and a hard surface you must have for pen-work. But it is an

unsympathetic material, and it is an appreciably more difficult matter

to make a pencil sketch upon it than upon such papers as Whatman’s HP.

Mounting-boards are frequently used, chiefly for journalistic pen-work,

when it may be supposed nobody cares anything about the _finesse_ of

the art, but only that the drawing shall be up to a certain standard

of excellence, and, more particularly, up to time. Mounting-boards are

appreciably cheaper than good Bristol-board, but if erasures are to be

made they are troublesome, because under the surface they are composed

of the shoddiest of matter. They are convenient, indeed admirable, for

studies carried out in a masculine manner with a quill pen, or for

simple drawings made with an ordinary writing nib, with not too sharp a

point. For delicate technique they are not to be recommended.

A Practical Hand-book of Drawing for Modern Methods of Reproduction · 第 2 / 6 段