"Observations on the anatomy of the duck-billed animal of New South Wales, the Ornithorynchus paradoxus of naturalists [AND] Observations on the organs of digestion and their appendages, and on the organs of respiration and circulation, in the Ornithorynchus paradoxus [AND] On the kidneys, urinary bladder, and organs of generation, in the male of the Ornithorynchus paradoxus." added to your shopping cart ×