Santa Caterina da Siena, Opera omnia. Testi e concordanze. (CD-Rom). Editore: Centro Riviste, Pistoia.

Dr Antonio Volpato provided a critical text of Catherine of Siena's Letters, based upon the main families of manuscripts, that represents a stage towards the elaboration of the critical edition that he's preparing for the Istituto Storico Italiano per il Medioevo.For late 14th century and Catherine's work scholars, this text completely substitutes N. Tommaseo's 19th century edition. Previously, Prof. E. Dupré Theseider's 1940 work, that included just 88 letters, was the only one available.Each form and lemma of the corpus, that, besides the Letters, is composed of Prof.a G. Cavallini's edition of the Dialogue and the Orations, has been recorded by Mr F. Sposini in the list of the forms and lemmas of the CD-ROM.As the letters were dictated to different secretaries, who reproduced Catherine's language with many graphic and phonetic variations, and as the preserved manuscripts retain the elements of the Sienese dialect to different degrees, the correspondence between the standard form of the lemma and the other allotrope forms has been recorded on a list called "Lemmas with variations", that will result valuable for research on History of the Italian Language.This text of the letters, in a pre-print form, has been used by Sister S. Noffke for the English translation: The Letters of Catherine of Siena, Translated with introduction and notes by S. Noffke O.P., Arizona Center for Medieval and Renaissance Studies, Tempe, Arizona, voll. I-II, 2000-2001 (Letters 1 to 212, further volumes are to be published).