(London, Taylor and Francis, 1873). 4to. No wrappers as extracted from "Philosophical Transactions", 1872. Vol. 162. Pp. 241-258 a. 9 lithographed plates. Plates with a few light brownspots. Clean and fine.
First appearance of a classical paper in which Owen describes the finds of the remains of "extinct Wombats of markedly superior size to any now living; and I shall describe the fossils as the species they represent progressively predominate in bulk."