A few years ago, three parchment strips were found which come from a codex of the 10th century reused as a backing for three fascicles of the manuscript D. gr. 37, in the Centre for Slavo-Byzantine Studies “Prof. Ivan Dujčev” in Sofia. In this article the entire text of the fragments will be presented and discussed. They belong to a manuscript with excerpts from various works on grammar and rhetoric and on celestial signs, namely the anonymous Περὶ τῶν τῆς ῥητορικῆς προοίμιον §12,26-33 Patillon, John Lydusʼ Περὶ μηνῶν 4,119 Wünsch, a parallel text to the Γεωπονικά 1,3,12 and other unidentified works. The strips are independent witnesses for the text of all of the three aforementioned works. The most interesting case is the excerpt from Lydus where Apuleiusʼ De mundo 10-11 is quoted as source. However, we may suppose that Lydusʼ text was also directly founded on the original, the (pseudo-)Aristotelian Περὶ κόσμου 394b7-35 which had been translated by Apuleius.