there he had numerous scholars, and painted many cupolas, ceilings, and other considerable works, and with such a variety of design, that there is not an instance of an attitude being repeated by him. Nor was he deficient in grace, either of form or colour, as long as he trod in the steps of Lanfranco, as he did in the S. M. di Loreto, and in other churches, but aspiring in some others to a more vigorous style, he became dark and heavy. He excelled in the knowledge of the _sotto in su_, and displayed extraordinary skill in his foreshortenings. The painters in Naples have often compared among themselves, says Dominici, the two pictures of S. Michael, the one by Lanfranco, and the other by Benaschi, in the church of the Holy Apostles, without being able to decide to which master they ought to assign the palm of merit. Guercino himself was never in Naples, but the Cav. Mattia Preti, commonly called il Cav. Calabrese, allured by the novelty of his style, repaired to Cento, to avail himself of his instructions. This information we have from Domenici, who had heard him say, that he was in fact the scholar of Guercino, but that he had, moreover, studied the works of all the principal masters; and he had indeed visited almost every country, and seen and studied the best productions of every school, both in and beyond Italy. Hence in his painting he may be compared to a man whose travels have been extensive, and who never hears a subject started to which he does not add something new, and indeed the drapery and ornaments, and costume of Preti, are highly varied and original. He confined himself to design, and did not attempt colours until his twenty-sixth year. In design he was more vigorous and robust than delicate, and sometimes inclines to heaviness. In his colouring he was not attractive, but had a strong _impasto_, a decided chiaroscuro, and a prevailing ashy tone, that was well adapted for his mournful and tragical subjects; for, following the bent of his genius, he devoted his pencil to the representation of martyrdoms, slaughters, pestilence, and the pangs of a guilty conscience. It was his custom, says Pascoli, at least in his large works, to paint at the first conception, and true to nature, and he did not take much pains afterwards in correction, or in the just expression of the passions.