Owing to the lack of a complete Corpus of the Sicilian poets, the student of this period has to seek the repertory of the group in a number of different sources, and it is in the hope of greatly lessening his labors that the following study has been prepared, offering the essential materials in a compact form, and so arranged that it may be quickly and easily consulted. First we discuss the constitution of the Sicilian group of the age of Frederick II, then give an alphabetical list of the poets, with a few biographical notes and references under each, and the numbers of their poems, in the accompanying Index of First Lines. In the Index of First Lines there will be found under each poem references to the important manuscripts and editions; also an indication of the metrical scheme. As such a collection of material offers a natural opportunity for an examination of the metrical forms of the period, an analysis of the technique of the canzone and the sonnet is added.