This correspondence between the earlier and later schools of Toledo is even more close and exact than we have yet observed. It appears also in the fact that a Jewish interpreter was attached to each, and rendered important service as a member of the college. Under Don Raymon this place was held by Johannes Avendeath, or Johannes Hispalensis as he is commonly called, who worked along with the Archdeacon. ‘You have then,’ says Avendeath, addressing the Archbishop, ‘the book which has been translated from the Arabic according to your commands: I reading it word by word into the vernacular (Spanish), and Dominic the Archdeacon rendering my words one by one into Latin.’[164] The same division of labour seems to have been followed in the new school which Frederick promoted. The Emperor drew the attention of these learned men to Averroës, and signified his desire that a version of this author should be prepared like that which had been made from Avicenna. Michael Scot and Gerard of Cremona were responsible, the former probably in a special sense, both for the general conduct of the undertaking, and, in particular, for the accuracy of the Latin. Now these scholars also, like their predecessors, availed themselves of the help of a Jewish interpreter. This was one Andrew Alphagirus, who seems to have taken the same part that Avendeath had formerly done, by translating the Arabic of Averroës into current Spanish, which Scot and his coadjutor then rendered into Latin. Such at least appear to be the suggestions which offer themselves naturally to one who peruses the colophon to the copy of the _De Animalibus ad Caesarem_ preserved in the _Bibliotheca Angelica_ of Rome. Thus it runs: ‘Here endeth the book of Aristotle concerning animals, according to the abbreviation of Michael Scot Alphagirus.’ The form of expression is curious, but may be exactly matched from the versions produced by the earlier Toledan translators: that is, if we are to believe Bartolocci. This author, in the first volume of his _Bibliotheca Rabbinica_, mentions a manuscript of the Fondo Urbinate in the Vatican which, he says, contains the four books of Avicenna on Physics translated by ‘Johannes Gundisalvi.’ This name has evidently, like that of ‘Scoti Alphagiri,’ been formed by composition from those of the two translators, _Johannes_ Avendeath and Dominicus _Gundisalvi_ who aided each other in the work.[165]