Collectors of prints do the same when they discover the name of some designer, of whom history is silent, affixed to an engraving. Thus, were we to consult the opinion of the public, the majority would be inclined to recommend copiousness, rather than to express satisfaction at a more discriminating selection of names. Almost all artists and amateurs belonging to every city, would be desirous that I should commemorate as many of their second rate painters as possible; and our selection, therefore, in this respect, nearly resembles the exercise of justice, which is generally applauded as long as it visits only the dwellings of others, but is cried down by each individual when it knocks at his own door. Thus a writer who is bound to observe impartiality towards every city, can scarcely shew great severity to artists of mediocrity in any. This too is not without reason; for to pass mediocrity in silence may be the study of a good orator, but not the office of a good historian. Cicero himself, in his treatise _De claris Oratoribus_, has given a place to less eloquent orators, and it may be observed that, after this example, the literary history of every people does not merely include its most classic writers, and those who approached nearest to them; but it adds short and concise accounts of authors less celebrated; and in the Iliad, which is a history of the heroic age, there are a few eminent leaders, many valiant soldiers, and a prodigious crowd of others, whom the poet has transiently noticed. In our case, it is still more incumbent on the historian to give mediocrity a place along with the eminent and most excellent. Many books describe that class in terms so vague, and sometimes so discordant, that to form a proper estimate of their claims, we must introduce them among superior artists, as a sort of performers in third-rate parts. Such, however, I am not solicitous to exhibit very minutely, more especially when treating of painters in fresco, and generally of other artists, whose works are now unknown in collections, or add more to the bulk than the ornament of a gallery. Thus also in point of number, my work has maintained the character of a compendium: but if any of my readers, adopting the rigid maxim of Bellori, that, in the fine arts, as in poetry, mediocrity is not to be tolerated,[11] should disdain the middle class of artists, he must look for the heads of schools, and for the most eminent painters: to these he may dedicate his attention, and turn his regard from the others like one, "Cui altra cura stringa e morda Che quella di colui che gli è davante."[12]