under the title of Persian Adab were spread among those who sympathised with Mazdaism and Manichism in the circle of Moslem society.[6] These books by their character were comparable to books on Mazdak but also to Kalila wa Dimna. [Footnote 1: Fihrist, 118, 18-29, and Ibn al Qifti's _Tarkh al hukama_ edited by Lippert, page 220, 1-10.] [Footnote 2: Brockelmann, On the rhetorical writings of Ibn all Mukaffa, Z.D.M.G. 53, 231-32.] [Footnote 3: Hoffmann "Extracts from Syrian acts of Persian martyrs", 1880 page 289 note, and Justi, _Namenbuch_ 186.] [Footnote 4: Precise information regarding its contents is rather to be found in Ibn al Qifti than in the _Fihrist_. In the former the heading is _Fi taat us Sultan_, in the latter _Fi rasail._ See _La perle incomparable ou_ l'art du parfait courtisane de Abdallah ibn al-Muqaffa, 1906. See the French translation from the Dutch rendering of this tract.] [Footnote 5: On the political ideas of the latter see Pizzi, Le idee politiche di Nizam-ul-Mulk G.S.A. 1., 131-141.] [Footnote 6: Tabari "Annales" Vol. 3, 1309, 9-15, and Browne A literary History of Persia, 1, 332.] Besides Muqaffa a number of writers of the epoch of the development of Arabic Musalman literature interested themselves in themes connected with Persian antiquities. One of them, Aban Ibn Abdul Humiad ar Rakashi otherwise known as Aban al-Lahiki chose a number of themes from ancient Persian literature and according to the Fihrist versified them (119, 1-6-163, 7-10). Such subjects were--_Kalila and Dimna,_ the _Book of Barlaam and Yuasef, the Book of Sindbad_, the _Book of Mazdak_ and finally books on two popular representative of the Sasanian dynasty, namely, the _Book of the acts of Ardasher_ and the _Book of the acts of Anushirvan._[1] [Footnote 1: Versification of the history of Anushirvan is also to be met with in later Parsi literature, see, Sachau, Contribution to the knowledge of the Parsi literature, J.R.A.S. 1870 page 258.] Another author, Ahmed Ibn Tahir Taifur, wrote according the Fihrist (146, 21) a special Book of Hormuz son of Kisra Anushirvan.[1] No doubt, further more, writers of Persian origin followed in their books on _Adab_ Persian models. Such probably was the book of Adab by an author whose name has been mutilated in the Fihrist (139, 15, 18). There is another class of writings which bears relation to this one and which is mentioned in the Fihrist. It is quite possible that on this literary Persian tradition, were based also some of the tracts under the title of "_Books on counsels_" a considerable number of which we meet with in the Fihrist.[2] [Footnote 1: See the essay of Baron Rosen on the anthology of Ahmed Ibn Abi Tahir.] [Footnote 2: 78, 15; 105, 10; 293, 12; 204, 17-18; 204, 29; 207, 21; 210, 23; 212, 22-23; 217, 4-5; 220, 25; 222, 14; 234, 23; 281, 20; 282, 5.]