MORGAGNI, Giovani Battista (1682-1771). De sedibus, et causis morborum per anatomen indagatis. Yverdun: n.p., 1779. Five parts in three volumes, 4o (251 x 194 mm). Portrait frontispiece in Vol. I, half-title to each part. Contemporary tree calf, spines gilt, black morocco lettering pieces (joints splitting). Provenance: John Charles Ogilvie (signature on front pastedowns of each volume and on title of Vol. II). Third edition of "one of the most important works in the history of medicine" (Garrison-Morton). Morgagni, Professor of Anatomy at Padua, used evidence from his experience and the records of some 700 post-mortem dissections to establish a procedure for basing diagnosis and treatment on a detailed knowledge of the anatomical evidence of diseases, i.e., a classification of symptoms rather than diseases. (3)