Buenos Aires, Pablo E. Coni é Hijos (Jacobo Peuser, ed.), 1889. In two volumes (text and atlas). 4to and folio (35.2 x 25.4 cm). Text volume: xxxii, 1,027 pp.; Atlas: xi pp,; 98 lithographed plates, with explanatory text leaves. Contemporary uniform quarter calf over blindstamped burgundy boards. Spines with five raised bands and gilt title. Marbled endpapers.

A rare, massive work by the famous Argentine palaeontologist and vertebrate zoologist Florentino Ameghino (1853-1911). "From 1887 until his death, Ameghino was passionately devoted to the study of fossil mammals from Patagonia, with the valuable support of his brother Carlos Ameghino (1865-1936) who, between 1887 and 1902, made 14 trips to that region, where he discovered and collected numerous fossil faunas and made important stratigraphic observations" (Wikipedia). The present work summarizes all that was written on South American fossil mammals, including works by De Blainville, Burmeister, Charles Darwin, Alcide d'Orbigny, etc., with many additions - including new species - and corrections by Ameghino. Published in the Actas de la Academia Nacinal de Ciencias en Córdoba, as the complete volume VI. Inscribed in pencil on the title page by J. W. Romero (dated Junio 1890), and on the first blank recto by the Australian palaeontologist and malacologist Jeffrey Darl Stilwell, with acquisition date. Boards of the atlas volume with some abrasion and superficial worming, especially of the rear board corners, internally a few worm holes restricted to the lower margin and lower inner gutter of the endpapers and the first and last two plates; tear in first blank of the atlas volume. Some spotting, mainly to the first and last few leaves and generally quite clean. All all a very good set. Cat. BM(NH) Supplement p. 18; Nissen ZBI, 6527. Not in Wood.