Title from Incipit, leaf "a" recto (i.e. leaf a2r).
Imprint from colophon (leaf C8r): Finit liber tertius [et] ultim[us] de su[m]mo bono fancti Isidori hyspalensis ep[iscop]i: Impressus Venetiis per Petru[m] loslein de Langencen[sis]. .M.cccc.lxxxiii.
Printed in Loslein's types 1:79G and 2:130G.
Collation: [1]⁴; a-h¹⁰ i¹² k¹⁰; [2]²; A-B¹⁰ C⁸: 136 leaves, leaf a1 blank.
Paper format: Chancery folio
Full page woodcut on leaf e9 verso: "Hec est arbor consanguinitatis", and other diagrams.
Includes De summo bono, which has separate index, signatures, and leaf numbering.
PML copy leaf dimensions: 31.1 x 20.7 cm.
Caption, leaf pi1 verso: Registru[m] iu libros etymolotiaru[m] sancti Isadori hispalensis episcopi
Hand decoration: Rubricated, red and blue puzzle initials with filigree decoration, with red lombards, paragraph marks, and capital strokes. Annotations: No marginal notations in text. Fore-edge red leather tabs.