A commentary on the influence of eclipses in both the Quadripartitum (Book II) and the Centiloquium (v. 24 and 96), published by Luca Gaurico in 1539, as part of a volume of astrological works addressed to the condottiero Alfonso d’Avalos d’Aquilo (1502-1546). Gaurico makes use of several versions of both texts, i.e. the Quadripartitum in Plato of Tivoli’s, Egidius de Tebaldis’s and Joachim Camerarius’s translations (A.2.1, A.2.5 and A.2.9 or A.2.10) and the Centiloquium in both George of Trebizond’s and Giovanni Pontano’s translations (B.1.7 and B.1.9). Gaurico also resorts to at least three additional texts: Manilius’s Astronomica, Proclus’s Apotelesmata in a translation attributed to Lorenzo Bonincontri and Hermes’s Centiloquium. The current work title is taken from the title page of the 1539 edition.

Text ‘(ed. Rome 1539) Claudii Ptolemaei Alexandrini Apotelesmatum libro II, capite VII de tempore eventuum. Primum in unaquaque regione, cuius situs ratione comprehensus est… Ptolomaeus Centiloquii enunciatio XXIIII. Effectus luminarium in cardinibus geniturarum… (F_iiiv) L. Gauricus. Ptolemaeus ab intervallo ascendentis ac loci defectus docuit invenire tempus in quo luminarium eclypses incipiunt suos producere effectus — vel alcocodea maximum vitae periculum vel infirmitatem magnam, nisi fortunae aspexerint. Finis.’

Bibl. J.-B.-J. Delambre, Histoire de l’astronomie du Moyen Age, Paris, 1819, 435; L. Thorndike, A History of Magic and Experimental Science, V, New York, 1941, 257-258 and n. 22.

Modern ed. ---