Pātuhitia tēnei: Three voyages of a naturalist: Being an account of many little-known islands in three oceans visited by the Valhalla R.Y.S. By M. J. Nicoll, Member of the British Ornithologist Union. With an Introduction by The Rt. Hon. The Earl of Crawford, K.T., F.R.S. With fifty-six plates four sketch-maps and text illustrations. Second edition