Città del Vaticano, Biblioteca Apostolica Vaticana, Barb.156 Additional shelfmarks Pieralisi 1 Old shelfmarks Barb. IX. 25; 2237 Scribe(s) (1r) marg.: Bartholomej Vespucij quem emit anno 1512 florentie libre 3; (217r): Bartholomej Vespucij librum emi Florentie anno 1512 libre 3. Century 15 Language Latin Composite ms. 3 parts No. of ms. part I (1r-149r, 198r-215r); II (150r-71r); III (172r-97r) Material Chart. No. of leaves 215 Initials etc. Rubr. in red in all parts but icomplete: 198r-215v and 177r-197v have none Printed catalogs T. Silverstein, Medieval Latin Scientific Writings in the Barberini Collection (1957) 32-4 Source Silverstein (1957) Type of source cat. Source’s source insp. Work 1No. of ms. part I (1-149) Type of writing large humanistic hand No. of columns 1 col. Width of columns 230 x 125 Lineation 32 lines Work 2Author (ms.) Johannes de monte regio Author standard Johannes Regiomontanus Additional names Ptolemaeus Title (standard) Epithome Incipit (dedic.) <A>DMIRANTI michi sepenumero vel potius graviter vel inique ferenti... Incipit 2 Recte profecto meo iudicio nobiliores...(2v) Item no. a Folio no. 1r-147r (I) Rubric Johannis de monte regio epithome in almagestum Ptholomei T & K TK, 620 + 29 Work 3No. of ms. part II (150-171) Type of writing smaller hand No. of columns 2 cols. Width of columns 236 x 066 Lineation 54 lines Ink darker ink Work 4No. of ms. part III (172r-197r) Type of writing larger hand than that of II No. of columns 2 cols. Width of columns 226 x 065 Lineation 48 lines