Marshall, P., 1932. Some Volcanic Rocks of the North Island of N.Z., N.Z. Journ. Sci. and Tech., vol. 13, pp. 198–200. —, 1935. Acid Rocks of the Taupo-Rotorua Volcanic District, Trans. Roy. Soc. N.Z., vol. 64, pp. 323–366. Richards, H. C., and Bryan, W. H., 1934. The Problem of the Brisbane Tuff, Proc. Roy. Soc. Queensland, vol. 45, No. 11. Speight, R., 1917. Geology of Banks Peninsula, Trans. N.Z. Inst., 49, pp. 365–392. —, 1922. The Rhyolites of Banks Peninsula, Rec. Cant. Mus., vol. 21, No. 2, pp. 77–91. —, 1923. The Intrusive Rocks of Banks Peninsula, Rec. Cant. Mus., vol. 2, No. 3. pp. 121–46. —, 1926. The Stratigraphical Position of the Charteris Bay Sandstone, Trans. N.Z. Inst., vol. 56, pp. 361–63. Description of Plates. Plate 37A.—Panorama of the western side of the upper part of McQueens Valley looking west and north-west. The slope in the middle distance is the eastern face of Thompsons and Gebbies Spurs. The photograph shows the generally subdued landscape; the basal beds exposed are of andesite with outliers of rhyolite resting thereon. Greywacke appears on the extreme right of the picture. Plate 37B.—Panorama of Gold Valley looking north-west and north. Gold Spur is in the middle, with the end of Thompsons Spur behind it on the left, Gebbies Spur behind that, while in the extreme distance is the ridge of Lyttelton Volcanics passing through Coopers Knob. Gold Spur is mostly of andesite, but with rhyolite masses near its proximal end, and a detached mass of rhyolite forming the bluff at its distal end. Plate 38C.—Columnar rhyolite-tuff. The stick in the middle is just over 4 feet in length. The columns are from 4 to 6 inches in diameter. A cross joint-plane cutting the columns is seen to the right o the picture. Plate 38D.—Columnar rhyolite-tuff showing prisms, with laminations crossing them but not at right angles to their length, and slightly inclined to the horizontal. Notes on the Maps. The boundaries of the different beds are indicated as accurately as possible. Owing to the covering of soil and the consequent rarity of outcrops, conclusions as to the beds lying underneath are at times a matter for speculation. This applies specially to the beds on the east of Gold Valley, the middle portion of Gebbies Spur, the west of Gebbies Valley, and the valley at the head of Governors Bay. No trachyte dykes are indicated on the Mansons Peninsula map since they are too numerous for adequate representation considering the scale of the map.