Of his pictures a considerable number are to be found in private collections, particularly on sacred subjects, such as the Madonna and Child, and other compositions of the Holy Family. They are in the three styles which we have before described: the Grand Duke has some specimens of each. The most admired is that which is named the Madonna della Seggiola.[52] Of this class of pictures it is often doubted whether they ought to be considered as originals, or copies, as some of them have been three, five, or ten times repeated. The same may be said of other cabinet pictures by him, particularly the S. John in the desart, which is in the Grand Ducal gallery at Florence, and is found repeated in many collections both in Italy and in other countries. This was likely to happen in a school where the most common mode was the following:--The subject was designed by Raffaello, the picture prepared by Giulio, and finished by the master so exquisitely, that one might almost count the hairs of the head. When the pictures were thus finished, they were copied by the scholars of Raffaello, who were very numerous, and of the second and third order; and these were also sometimes retouched by Giulio and by Raffaello himself. But whoever is experienced in the freedom and delicacy of the chief of this school, need not fear confounding his productions with those of the scholars, or of Giulio himself; who, besides having a more timid pencil, made use of a darker tint than his master was accustomed to do. I have met with an experienced person, who declared that he could recognize the character of Giulio in the dark parts of the flesh tints, and in the middle dark tints, not of a leaden colour as Raffaello used, nor so well harmonized; in the greater quantity of light, and in the eyes designed more roundly, which Raffaello painted somewhat long, after the manner of Pietro.