propriety of technical terms, the abilities of artists, and the selection of specimens of art, are usually better understood, even by an indifferent artist, than by the learned connoisseur: but since those occupied in painting have not sufficient leisure to write, others, assisted by them, may be permitted to undertake the office.[18]

By the mutual assistance which the painter has afforded to the man of letters, and the man of letters to the artist, the history of painting has been greatly advanced. The merits of the best painters are already so ably discussed that a modern historian can treat the subject advantageously. The criticisms I most regard are those that come directly from professors of the art. We meet with few from the pen of Raphael, of Titian, of Poussin, and of other great masters; such as exist, however, I regard as most precious, and deserving the most careful preservation; for, in general, those who can best perform can likewise judge the best. Vasari, Lomazzo, Passeri, Ridolfi, Boschini, Zanotti, and Crespi, require, perhaps, to be narrowly watched in some passages where they allowed themselves to be surprised by a spirit of party: but, on the whole, they have an undoubted right to dictate to us, because they were themselves painters. Bellori, Baldinucci, Count Malvasia, Count Tassi, and similar writers, hold an inferior rank; but are not wholly destitute of authority: for though mere dilettanti, they have collected both the opinions of professors and of the public. This will at present suffice, with regard to the historians of the art: we shall notice each of them particularly under the school which he has described.

In pronouncing a criticism upon each artist I have adopted the plan of Baillet, the author of a voluminous history of works on taste, where he does not so frequently give his own opinion as that of others. Accordingly, I have collected the various remarks of connoisseurs, which were scattered through the pages of history; but I have not always cited my authorities, lest I should add too much to the dimensions of my book;[19] nor have I regarded their opinion when they seemed to me to have been influenced by prejudice. I have availed myself of the observations of some approved critics, like Borghini, Fresnoy, Richardson, Bottari, Algarotti, Lazzarini, and Mengs; with others who have rather criticised our painters than written their lives. I have also respected the opinions of[Pg xxxiii] living critics, by consulting different professors in Italy: to them I have submitted my manuscript; I have followed their advice, especially when it related to design, or any other department of painting, in which artists are almost the only adequate judges. I have conversed with many connoisseurs, who, in some points, are not less skilful than the professors of the art, and are even consulted by artists with advantage; as, for instance, on the suitableness of the subject, on the propriety of the invention and the expression, on the imitation of the antique, on the truth of the colouring. Nor have I failed to study the greatest part of the best productions of the schools of Italy; and to inform myself in the different cities what rank their least known painters hold among their connoisseurs; persuaded, as I am, that the most accurate opinion of any artist is formed where the greatest number of his works are to be seen, and where he is most frequently spoken of by his fellow citizens and by strangers. In this way, also, I have been enabled to do justice to the merits of several artists who had been passed over, either because the historian of their school had never beheld their productions, or had merely met with some early and trivial specimens in one city, being unacquainted with the more perfect and mature specimens they had produced elsewhere.

Notwithstanding my diligence I do not presume to offer this as a work to which much might not be added. It has never happened that a history, embracing so many objects, is at once produced perfect; though it may gradually be rendered so. The history earliest in point of time, becomes, in the end, the least in authority; and its greatest merit is in having paved the way to more finished performances. Perfection is still less to be expected in a compendium. The reader is here presented with the names of many artists and authors; but many others might have been admitted, whom want of leisure or opportunity, but not of respect, has obliged us to omit. Here he will find a variety of opinions; but to these many others might have been added. There is no man, of whom all think alike. Baillet, just before mentioned, is a proof of this, with regard to writers on literary subjects; and he who thinks the task worthy of his pains might demonstrate it much more fully with respect to different painters. Each judges by principles peculiar to himself: Bonarruoti stigmatized as drivelling, Pietro Perugino and Francia, both luminaries of the art; Guido, if we may credit history, was disapproved of by Cortona; Caravaggio by Zucchero; Guercino by Guido; and, what seems more extraordinary, Domenichino by most of the artists who flourished at Rome, when he painted his finest pictures.[20] Had these artists written of their rivals they either would have condemned them, or spoken less favourably of them than unprejudiced individuals. Hence it is that connoisseurs will frequently be found to approach nearer the truth, in forming their estimate, than artists; the former adopt the impartial feelings of the public, while the latter allow themselves to be influenced by motives of envy or of prejudice. Innumerable similar disputes are still maintained concerning several artists, who, like different kinds of aliment, are found to be disagreeable or grateful to different palates. To hold the happy mean, exempted from all party spirit, is as impossible as to reconcile the opinions of mankind, which are as multifarious as are the individuals of the species.

Amid such discrepancy of opinion I have judged it expedient to avoid the most controverted points; in others, to subscribe to the decision of the majority; to allow to each his particular opinion;[21] but not, if possible, to disappoint the reader, desirous of learning what is most authentic and generally received. Ancient writers appear to have pursued this plan when treating of the professors of any art, in which they themselves were mere amateurs; nor could it arise from any other circumstance that Cicero, Pliny, and Quintilian, express themselves upon the Greek artists in the same manner. Their opinions coincide, because[Pg xxxvii] that of the public was unanimous. I am aware that it is difficult to obtain the opinion of the public concerning the more modern artists, but it is not difficult with regard to those on whom much has been already written. I am also aware that public opinion accords not at all times with truth, because "it often happens to incline to the wrong side