In the Laurentian Library there is a valuable manuscript, written during the summer and autumn of 1266, for the monks of Santa Croce.[102] It contains the _De Animalibus ad Caesarem_; the _Abbreviatio Avicennae_, and, as a third and concluding article, an independent version of the _Liber de Partibus Animalium_, corresponding, as has been said, to books xi.-xiv. of the other versions which the volume contains. Bandini, in the printed catalogue of the library, asserts that this third translation, unlike the two which precede it, was made from the Greek. This is probably correct, as it was only the Greek text which treated these four chapters of the Natural History as a distinct work. He further ascribes the version to Michael Scot, relying no doubt on the general composition of the volume, for this particular translation does not seem to contain any direct evidence of authorship. Thus the doubt expressed by Jourdain in this matter[103] is not without reason, though the balance of probability would seem to incline in favour of Bandini’s opinion; for such a volume can scarcely be assumed to have been a mere miscellany without clear evidence that the contents come from more than one author. Taking it for granted then that the _De Partibus Animalium_ came from Scot’s pen, then this is the third form in which his labours on the Natural History of Aristotle appeared. In any case, however, his chief merit in this department of study belonged to Michael Scot as the exponent of the Arabian naturalists. It is difficult for any one who has not read the books in question to form an adequate idea of their contents, and still more of their style; even from the most careful description. We are made to feel that the task of the translator must have been a very difficult one. There is a concentration combined with great wealth of detail, and withal a constant nimble transition from one subject to another, seemingly remote, under the suggestion of some subtle connection, which result in a style almost baffling to one who sought to reproduce it in his comparatively slow and clumsy Latin.