Aesthetic as Science of Expression and General Linguistic Part 12

Without tradition and historical criticism, the enjoyment of all or nearly all works of art produced by humanity, would be irrevocably lost: we should be little more than animals, immersed in the present alone, or in the most recent past. Only fools despise and laugh at him who reconst.i.tutes an authentic text, explains the sense of words and customs, investigates the conditions in which an artist lived, and accomplishes all those labours which revive the qualities and the original colouring of works of art.

Sometimes the depreciatory or negative judgment refers to the presumed or proved uselessness of many researches, made to recover the correct meaning of artistic works. But, it must be observed, in the first place, that historical research does not only fulfil the task of helping to reproduce and judge artistic works: the biography of a writer or of an artist, for example, and the study of the costume of a period, also possess their own interest, foreign to the history of art, but not foreign to other forms of history. If allusion be made to those researches which do not appear to have interest of any kind, nor to fulfil any purpose, it must be replied that the historical student must often reconcile himself to the useful, but little glorious, office of a cataloguer of facts. These facts remain for the time being formless, incoherent, and insignificant, but they are preserves, or mines, for the historian of the future and for whomsoever may afterwards want them for any purpose. In the same way, books which n.o.body asks for are placed on the shelves and are noted in the catalogues, because they may be asked for at some time or other. Certainly, in the same way that an intelligent librarian gives the preference to the acquisition and to the cataloguing of those books which he foresees may be of more or better service, so do intelligent students possess the instinct as to what is or may more probably be useful from among the ma.s.s of facts which they are investigating. Others, on the other hand, less well-endowed, less intelligent, or more hasty in producing, acc.u.mulate useless selections, rejections and erasures, and lose themselves in refinements and gossipy discussions. But this appertains to the economy of research, and is not our affair. At the most, it is the affair of the master who selects the subjects, of the publisher who pays for the printing, and of the critic who is called upon to praise or to blame the students for their researches.

On the other hand, it is evident, that historical research, directed to illuminate a work of art by placing us in a position to judge it, does not alone suffice to bring it to birth in our spirit: taste, and an imagination trained and awakened, are likewise presupposed. The greatest historical erudition may accompany a taste in part gross or defective, a lumbering imagination, or, as it is generally phrased, a cold, hard heart, closed to art. Which is the lesser evil?--great erudition and defective taste, or natural good taste and great ignorance? The question has often been asked, and perhaps it will be best to deny its possibility, because one cannot tell which of two evils is the less, or what exactly that means. The merely learned man never succeeds in entering into communication with the great spirits, and keeps wandering for ever about the outer courts, the staircases, and the antechambers of their palaces; but the gifted ignoramus either pa.s.ses by masterpieces which are to him inaccessible, or instead of understanding the works of art, as they really are, he invents others, with his imagination. Now, the labour of the former may at least serve to enlighten others; but the ingenuity of the latter remains altogether sterile. How, then, can we fail to prefer the conscientious learned man to the inconclusive man of talent, who is not really talented, if he resign himself, and in so far as he resigns himself, to come to no conclusion?

[Sidenote] _Literary and artistic history. Its distinction from historical criticism and from artistic judgement._

It is necessary to distinguish accurately _the history, of art and literature_ from those historical labours which make use of works of art, but for extraneous purposes (such as biography, civil, religious, and political history, etc.), and also from historical erudition, whose object is preparation for the Aesthetic synthesis of reproduction.

The difference between the first of these is obvious. The history of art and literature has the works of art themselves for princ.i.p.al subject; the other branches of study call upon and interrogate works of art, but only as witnesses, from which to discover the truth of facts which are not aesthetic. The second difference to which we have referred may seem less profound. However, it is very great. Erudition devoted to rendering clear again the understanding of works of art, aims simply at making appear a certain internal fact, an aesthetic reproduction. Artistic and literary history, on the other hand, does not appear until such reproduction has been obtained. It demands, therefore, further labour.

Like all other history, its object is to record precisely such facts as have really taken place, that is, artistic and literary facts. A man who, after having acquired the requisite historical erudition, reproduces in himself and tastes a work of art, may remain simply a man of taste, or express at the most his own feeling, with an exclamation of beautiful or ugly. This does not suffice for the making of a historian of literature and art. There is further need that the simple act of reproduction be followed in him by a second internal operation. What is this new operation? It is, in its turn, an expression: the expression of the reproduction; the historical description, exposition, or representation. There is this difference, then, between the man of taste and the historian: the first merely reproduces in his spirit the work of art; the second, after having reproduced it, represents it historically, thus applying to it those categories by which, as we know, history is differentiated from pure art. Artistic and literary history is, therefore, _a historical work of art founded upon one or more works of art_.

The denomination of artistic or literary critic is used in various senses: sometimes it is applied to the student who devotes his services to literature; sometimes to the historian who reveals the works of art of the past in their reality; more often to both. By critic is sometimes understood, in a more restricted sense, he who judges and describes contemporary literary works; and by historian, he who is occupied with less recent works. These are but linguistic usages and empirical distinctions, which may be neglected; because the true difference lies _between the learned man, the man of taste, and the historian of art_.

These words designate, as it were, three successive stages of work, of which each is relatively independent of the one that follows, but not of that which precedes. As we have seen, a man may be simply learned, yet possess little capacity for understanding works of art; he may indeed be both learned and possess taste, yet be unable to write a page of artistic and literary history. But the true and complete historian, while containing in himself, as necessary pre-requisites, both the learned man and the man of taste, must add to their qualities the gift of historical comprehension and representation.

[Sidenote] _The method of artistic and literary history._

The method of artistic and literary history presents problems and difficulties, some common to all historical method, others peculiar to it, because they derive from the concept of art itself.

[Sidenote] _Critique of the problem of the origin of art._

History is wont to be divided into the history of man, the history or nature, and the mixed history of both the preceding. Without examining here the question of the solidity of this division, it is clear that artistic and literary history belongs in any case to the first, since it concerns a spiritual activity, that is to say, an activity proper to man. And since this activity is its subject, the absurdity of propounding the historical _problem of the origin of art_ becomes at once evident. We should note that by this formula many different things have in turn been included on many different occasions. _Origin_ has often meant _nature_ or _disposition_ of the artistic fact, and here was a real scientific or philosophic problem, the very problem, in fact, which our treatise has tried to solve. At other times, by origin has been understood the ideal genesis, the search for the reason of art, the deduction of the artistic fact from a first principle containing in itself both spirit and nature. This is also a philosophical problem, and it is complementary to the preceding, indeed it coincides with it, though it has sometimes been strangely interpreted and solved by means of an arbitrary and semi-fantastic metaphysic. But when it has been sought to discover further exactly in what way the artistic function was _historically formed_, this has resulted in the absurdity to which we have referred. If expression be the first form of consciousness, how can the historical origin be sought of what is _presupposed_ not to be a product of nature and of human history? How can we find the historical genesis of that which is a category, by means of which every historical genesis and fact are understood? The absurdity has arisen from the comparison with human inst.i.tutions, which have, in fact, been formed in the course of history, and which have disappeared or may disappear in its course. There exists between the aesthetic fact and a human inst.i.tution (such as monogamic marriage or the fief) a difference to some extent comparable with that between simple and compound bodies in chemistry. It is impossible to indicate the formation of the former, otherwise they would not be simple, and if this be discovered, they cease to be simple and become compound.

The problem of the origin of art, historically understood, is only justified when it is proposed to seek, not for the formation of the function, but where and when art has appeared for the first time (appeared, that is to say, in a striking manner), at what point or in what region of the globe, and at what point or epoch of its history; when, that is to say, not the origin of art, but its most antique or primitive history, is the object of research. This problem forms one with that of the appearance of human civilization on the earth. Data for its solution are certainly wanting, but there yet remains the abstract possibility, and certainly attempts and hypotheses for its solution abound.

[Sidenote] _History and the criterion of progress._

Every form of human history has the concept of _progress_ for foundation. But by progress must not be understood the imaginary and metaphysical _law of progress_, which should lead the generations of man with irresistible force to some unknown destiny, according to a providential plan which we can logically divine and understand. A supposed law of this sort is the negation of history itself, of that accidentality, that empiricity, that contingency, which distinguish the concrete fact from the abstraction. And for the same reason, progress has nothing to do with the so-called _law of evolution_. If evolution mean the concrete fact of reality which evolves (that is, which is reality), it is not a law. If, on the other hand, it be a law, it becomes confounded with the law of progress in the sense just described.

The progress of which we speak here, is nothing but the _concept of human activity itself_, which, working upon the material supplied to it by nature, conquers obstacles and bends nature to its own ends.

Such conception of progress, that is to say, of human activity applied to a given material, is the _point of view_ of the historian of humanity. No one but a mere collector of stray facts, a simple seeker, or an incoherent chronicler, can put together the smallest narrative of human deeds, unless he have a definite point of view, that is to say, an intimate personal conviction regarding the conception of the facts which he has undertaken to relate. The historical work of art cannot be achieved among the confused and discordant ma.s.s of crude facts, save by means of this point of view, which makes it possible to carve a definite figure from that rough and incoherent ma.s.s. The historian of a practical action should know what is economy and what morality; the historian of mathematics, what are mathematics; the historian of botany, what is botany; the historian of philosophy, what is philosophy. But if he do not really know these things, he must at least have the illusion of knowing them; otherwise he will never be able to delude himself that he is writing history.

We cannot delay here to demonstrate the necessity and the inevitability of this subjective criterion in every narrative of human affairs. We will merely say that this criterion is compatible with the utmost objectivity, impartiality, and scrupulosity in dealing with data, and indeed forms a const.i.tutive element of such subjective criterion. It suffices to read any book of history to discover at once the point of view of the author, if he be a historian worthy of the name and know his own business. There exist liberal and reactionary, rationalist and catholic historians, who deal with political or social history; for the history of philosophy there are metaphysical, empirical, sceptical, idealist, and spiritualist historians. Absolutely historical historians do not and cannot exist. Can it be said that Thucydides and Polybius, Livy and Tacitus, Machiavelli and Guicciardini, Giannone and Voltaire, were without moral and political views; and, in our time, Guizot or Thiers, Macaulay or Balbo, Ranke or Mommsen? And in the history of philosophy, from Hegel, who was the first to raise it to a great elevation, to Ritter, Zeller, Cousin, Lewes, and our Spaventa, was there one who did not possess his conception of progress and criterion of judgment? Is there one single work of any value in the history of Aesthetic, which has not been written from this or that point of view, with this or that bias (Hegelian or Herbartian), from a sensualist or from an eclectic point of view, and so on? If the historian is to escape from the inevitable necessity of taking a side, he must become a political and scientific eunuch; and history is not the business of eunuchs. They would at most be of use in compiling those great tomes of not useless erudition, _elumbis atque fracta_, which are called, not without reason, monkish.

If, then, the concept of progress, the point of view, the criterion, be inevitable, the best to be done is not to try and escape from them, but to obtain the best possible. Everyone strives for this end, when he forms his own convictions, seriously and laboriously. Historians who profess to wish to interrogate the facts, without adding anything of their own to them, are not to be believed. This, at the most, is the result of ingenuousness and illusion on their part: they will always add what they have of personal, if they be truly historians, though it be without knowing it, or they will believe that they have escaped doing so, only because they have referred to it by innuendo, which is the most insinuating and penetrative of methods.

[Sidenote] _Non-existence of a unique line of progress in artistic and literary history._

Artistic and literary history cannot dispense with the criterion of progress any more easily than other history. We cannot show what a given work of art is, save by proceeding from a conception of art, in order to fix the artistic problem which the author of such work of art had to solve, and by determining whether or no he have solved it, or by how much and in what way he has failed to do so. But it is important to note that the criterion of progress a.s.sumes a different form in artistic and literary history to that which it a.s.sumes (or is believed to a.s.sume) in the history of science.

The whole history of knowledge can be represented by one single line of progress and regress. Science is the universal, and its problems are arranged in one single vast system, or complex problem. All thinkers weary themselves over the same problem as to the nature of reality and of knowledge: contemplative Indians and Greek philosophers, Christians and Mohammedans, bare heads and heads with turbans, wigged heads and heads with the black berretta (as Heine said); and future generations will weary themselves with it, as ours has done. It would take too long to inquire here if this be true or not of science. But it is certainly not true of art; art is intuition, and intuition is individuality, and individuality is never repeated. To conceive of the history of the artistic production of the human race as developed along a single line of progress and regress, would therefore be altogether erroneous.

At the most, and working to some extent with generalizations and abstractions, it may be admitted that the history of aesthetic products shows progressive cycles, but each cycle has its own problem, and is progressive only in respect to that problem. When many are at work on the same subject, without succeeding in giving to it the suitable form, yet drawing always more nearly to it, there is said to be progress. When he who gives to it definite form appears, the cycle is said to be complete, progress ended. A typical example of this would be the progress in the elaboration of the mode of using the subject-matter of chivalry, during the Italian Renaissance, from Pulci to Ariosto. (If this instance be made use of, excessive simplification of it must be excused.) Nothing but repet.i.tion and imitation could be the result of employing that same material after Ariosto. The result was repet.i.tion or imitation, diminution or exaggeration, a spoiling of what had already been achieved; in sum, decadence. The Ariostesque epigoni prove this.

Progress begins with the commencement of a new cycle. Cervantes, with his more open and conscious irony, is an instance of this. In what did the general decadence of Italian literature at the end of the sixteenth century consist? Simply in having nothing more to say, and in repeating and exaggerating motives already found. If the Italians of this period had even been able to express their own decadence, they would not have been altogether failures, but have antic.i.p.ated the literary movement of the Renaissance. Where the subject-matter is not the same, a progressive cycle does not exist. Shakespeare does not represent a progress as regards Dante, nor Goethe as regards Shakespeare. Dante, however, represents a progress in respect to the visionaries of the Middle Ages, Shakespeare to the Elizabethan dramatists, Goethe, with _Werther_ and the first part of _Faust_, in respect to the writers of the _Sturm und Drang_. This mode of presenting the history of poetry and art contains, however, as we have remarked, something of abstract, of merely practical, and is without rigorous philosophical value. Not only is the art of savages not inferior, as art, to that of civilized peoples, provided it be correlative to the impressions of the savage; but every individual, indeed every moment of the spiritual life of an individual, has its artistic world; and all those worlds are, artistically, incomparable with one another.

[Sidenote] _Errors committed in respect to this law._

Many have sinned and continue to sin against this special form of the criterion of progress in artistic and literary history. Some, for instance, talk of the infancy of Italian art in Giotto, and of its maturity in Raphael or in t.i.tian; as though Giotto were not quite perfect and complete, in respect to his psychic material. He was certainly incapable of drawing a figure like Raphael, or of colouring it like t.i.tian; but was Raphael or t.i.tian by any chance capable of creating the _Matrimonio di San Francesco con la Poverta_, or the _Morte di San Francesco_? The spirit of Giotto had not felt the attraction of the body beautiful, which the Renaissance studied and raised to a place of honour; but the spirits of Raphael and of t.i.tian were no longer curious of certain movements of ardour and of tenderness, which attracted the man of the fourteenth century. How, then, can a comparison be made, where there is no comparative term?

The celebrated divisions of the history of art suffer from the same defect. They are as follows: an oriental period, representing a disequilibrium between idea and form, with prevalence of the second; a cla.s.sical, representing an equilibrium between idea and form; a romantic, representing a new disequilibrium between idea and form, with prevalence of the idea. There are also the divisions into oriental art, representing imperfection of form; cla.s.sical, perfection of form; romantic or modern, perfection of content and of form. Thus cla.s.sic and romantic have also received, among their many other meanings, that of progressive or regressive periods, in respect to the realization of some indefinite artistic ideal of humanity.

[Sidenote] _Other meanings of the word "progress" in respect to Aesthetic._

There is no such thing, then, as an _aesthetic_ progress of humanity.

However, by aesthetic progress is sometimes meant, not what the two words coupled together really signify, but the ever-increasing acc.u.mulation of our historical knowledge, which makes us able to sympathize with all the artistic products of all peoples and of all times, or, as is said, to make our taste more catholic. The difference appears very great, if the eighteenth century, so incapable of escaping from itself, be compared with our own time, which enjoys alike h.e.l.lenic and Roman art, now better understood, Byzantine, mediaeval, Arabic, and Renaissance art, the art of the Cinque Cento, baroque art, and the art of the seventeenth century. Egyptian, Babylonian, Etruscan, and even prehistoric art, are more profoundly studied every day. Certainly, the difference between the savage and civilized man does not lie in the human faculties. The savage has speech, intellect, religion, and morality, in common with civilized man, and he is a complete man. The only difference lies in that civilized man penetrates and dominates a larger portion of the universe with his theoretic and practical activity. We cannot claim to be more spiritually alert than, for example, the contemporaries of Pericles; but no one can deny that we are richer than they--rich with their riches and with those of how many other peoples and generations besides our own?

By aesthetic progress is also meant, in another sense, which is also improper, the greater abundance of artistic intuitions and the smaller number of imperfect or decadent works which one epoch produces in respect to another. Thus it may be said that there was aesthetic progress, an artistic awakening, at the end of the thirteenth or of the fifteenth centuries.

Finally, aesthetic progress is talked of, with an eye to the refinement and to the psychical complications exhibited in the works of art of the most civilized peoples, as compared with those of less civilized peoples, barbarians and savages. But in this case, the progress is that of the complex conditions of society, not of the artistic activity, to which the material is indifferent.

These are the most important points concerning the method of artistic and literary history.

XVIII

CONCLUSION:

IDENt.i.tY OF LINGUISTIC AND AESTHETIC

[Sidenote] _Summary of the inquiry._

A glance over the path traversed will show that we have completed the entire programme of our treatise. We have studied the nature of intuitive or expressive knowledge, which is the aesthetic or artistic fact (I. and II.), and we have described the other form of knowledge, namely, the intellectual, with the secondary complications of its forms (III.). Having done this, it became possible to criticize all erroneous theories of art, which arise from the confusion between the various forms, and from the undue transference of the characteristics of one form to those of another (IV.), and in so doing to indicate the inverse errors which are found in the theory of intellectual knowledge and of historiography (V.). Pa.s.sing on to examine the relations between the aesthetic activity and the other spiritual activities, no longer theoretic but practical, we have indicated the true character of the practical activity and the place which it occupies in respect to the theoretic activity, which it follows: hence the critique of the invasion of aesthetic theory by practical concepts (VI.). We have also distinguished the two forms of the practical activity, as economic and ethic (VII.), adding to this the statement that there are no other forms of the spirit beyond the four which we have a.n.a.lyzed; hence (VIII.) the critique of every metaphysical Aesthetic. And, seeing that there exist no other spiritual forms of equal degree, therefore there are no original subdivisions of the four established, and in particular of Aesthetic. From this arises the impossibility of cla.s.ses of expressions and the critique of Rhetoric, that is, of the part.i.tion of expressions into simple and ornate, and of their subcla.s.ses (IX.). But, by the law of the unity of the spirit, the aesthetic fact is also a practical fact, and as such, occasions pleasure and pain. This led us to study the feelings of value in general, and those of aesthetic value, or of the beautiful, in particular (X.), to criticize aesthetic hedonism in all its various manifestations and complications (XI.), and to expel from the system of Aesthetic the long series of pseudo-aesthetic concepts, which had been introduced into it (XII.). Proceeding from aesthetic production to the facts of reproduction, we began by investigating the mode of fixing externally the aesthetic expression, with the view of reproduction. This is the so-called physically beautiful, whether it be natural or artificial (XIII.). We then derived from this distinction the critique of the errors which arise from confounding the physical with the aesthetic side of things (XIV.). We indicated the meaning of artistic technique, that which is the technique serving for reproduction, thus criticizing the divisions, limits, and cla.s.sifications of the individual arts, and establis.h.i.+ng the connections between art, economy, and morality (XV.). Because the existence of the physical objects does not suffice to stimulate to the full aesthetic reproduction, and because, in order to obtain this result, it is necessary to recall the conditions in which the stimulus first operated, we have also studied the function of historical erudition, directed toward the end of re-establis.h.i.+ng our communication with the works of the past, and toward the creation of a base for aesthetic judgment (XVI.). We have closed our treatise by showing how the reproduction thus obtained is afterwards elaborated by the intellectual categories, that is to say, by an excursus on the method of literary and artistic history (XVII.).

The aesthetic fact has thus been considered both in itself and in its relations with the other spiritual activities, with the feelings of pleasure and of pain, with the facts that are called physical, with memory, and with historical elaboration. It has pa.s.sed from the position of _subject_ to that of _object_, that is to say, from the moment of _its birth_, until gradually it becomes changed for the spirit into _historical argument_.

Our treatise may appear to be somewhat meagre, when compared with the great volumes usually consecrated to Aesthetic. But it will not seem so, when it is observed that these volumes, as regards nine-tenths of their contents, are full of matter which does not appertain to Aesthetic, such as definitions, either psychical or metaphysical, of pseudo-aesthetic concepts (of the sublime, the comic, the tragic, the humorous, etc.), or of the exposition of the supposed Zoology, Botany, and Mineralogy of Aesthetic, and of universal history judged from the aesthetic standpoint. The whole history of concrete art and literature has also been dragged into those Aesthetics and generally mangled; they contain judgments upon Homer and Dante, upon Ariosto and Shakespeare, upon Beethoven and Rossini, Michelangelo and Raphael. When all this has been deducted from them, our treatise will no longer be held to be too meagre, but, on the contrary, far more copious than ordinary treatises, for these either omit altogether, or hardly touch at all, the greater part of the difficult problems proper to Aesthetic, which we have felt it to be our duty to study.

[Sidenote] _Ident.i.ty of Linguistic and Aesthetic._

Aesthetic, then, as the science of expression, has been here studied by us from every point of view. But there yet remains to justify the sub-t.i.tle, which we have joined to the t.i.tle of our book, _General Linguistic_, and to state and make clear the thesis that the science of art is that of language. Aesthetic and Linguistic, in so far as they are true sciences, are not two different sciences, but one single science.

Not that there is a special Linguistic; but the linguistic science sought for, general Linguistic, _in so far as what it contains is reducible to philosophy_, is nothing but Aesthetic. Whoever studies general Linguistic, that is to say, philosophical Linguistic, studies aesthetic problems, and _vice versa_. _Philosophy of language and philosophy of art are the same thing_.

Were Linguistic a _different_ science from Aesthetic, it should not have expression, which is the essentially aesthetic fact, for its object.

This amounts to saying that it must be denied that language is expression. But an emission of sounds, which expresses nothing, is not language. Language is articulate, limited, organized sound, employed in expression. If, on the other hand, language were a _special_ science in respect to Aesthetic, it would necessarily have for its object a _special cla.s.s_ of expressions. But the inexistence of cla.s.ses of expression is a point which we have already demonstrated.

[Sidenote] _Aesthetic formulization of linguistic problems. Nature of language._

The problems which Linguistic serves to solve, and the errors with which Linguistic strives and has striven, are the same that occupy and complicate Aesthetic. If it be not always easy, it is, on the other hand, always possible, to reduce the philosophic questions of Linguistic to their aesthetic formula.

The disputes as to the nature of the one find their parallel in those as to the nature of the other. Thus it has been disputed, whether Linguistic be a scientific or a historical discipline, and the scientific having been distinguished from the historical, it has been asked whether it belong to the order of the natural or of the psychological sciences, by the latter being understood empirical Psychology, as much as the science of the spirit. The same has happened with Aesthetic, which some have looked upon as a natural science, confounding aesthetic expression with physical expression. Others have looked upon it as a psychological science, confounding expression in its universality, with the empirical cla.s.sification of expressions. Others again, denying the very possibility of a science of such a subject, have looked upon it as a collection of historical facts. Finally, it has been realized that it belongs to the sciences of activity or of values, which are the spiritual sciences.

Linguistic expression, or speech, has often seemed to be a fact of _interjection_, which belongs to the so-called physical expressions of the feelings, common alike to men and animals. But it was soon admitted that an abyss yawns between the "Ah!" which is a physical reflex of pain, and a word; as also between that "Ah!" of pain and the "Ah!"

employed as a word. The theory of the interjection being abandoned (jocosely termed the "Ah! Ah!" theory by German linguists), the theory of _a.s.sociation or convention_ appeared. This theory was refuted by the same objection which destroyed aesthetic a.s.sociationism in general: speech is unity, not multiplicity of images, and multiplicity does not explain, but presupposes the existence of the expression to explain. A variant of linguistic a.s.sociationism is the imitative, that is to say, the theory of the onomatopoeia, which the same philologists deride under the name of the "bow-wow" theory, after the imitation of the dog's bark, which, according to the onomatopoeists, gives its name to the dog.

The most usual theory of our times as regards language (apart from mere cra.s.s naturalism) consists of a sort of eclecticism or mixture of the various theories to which we have referred. It is a.s.sumed that language is in part the product of interjections and in part of onomatopes and conventions. This doctrine is altogether worthy of the scientific and philosophic decadence of the second half of the nineteenth century.