The place of our camp on Ruapehu is given by the following bearings: North peak, 146°; needle-like rock, 128°; top of Ngauruhoe, ca. 18°. The aim is taken through dioptra from south to north. North has the figure 0, or 360; east the figure 90; south the figure 180; and west the figure 270. The given bearings indicate the reading of the north end of the needle. Therefore the reading 0 means that the object is towards the north; reading 90, towards the west; reading 180, towards the south; and reading 270, towards the east. The needle-like rock on the right outline of the slope of the north peak is unmistakable. If you should be in doubt, there being some sharp points, take the one most to your right. I could not warrant there will always be water in the gully, but I believe there is generally. Always take bearings from your camps before leaving them, the more so on the rolling tussock-plains or on the lower parts of the slopes. The bush-patches are difficult to identify from above, and when you return it is unpleasant to be in doubt as to where your camp and your provisions are waiting for you. This I mention out of sad experience.

Art. XLIX.—The Volcanoes of the Pacific. By Coleman Phillips. [Read before the Wellington Philosophical Society, 17th August, 1898.] Plate LI. First Lines of Activity. In December, 1894, I went down to Tonga and Samoa from Auckland in the s.s. “Upolu.” Whilst lying at the wharf at Nukualofa, the capital of Tongatabu, the most southern of the three great islands of Tonga (the middle one being named Hapaai and the northern island Vavau), the steamer was shaken against the wharf by a sharp earthquake shock. No one took any notice of the matter, as earthquake shocks are common in Tonga; but it led me to inquire further into the question, and my inquiries resulted in finding that the situation of this particular group of islands will be found most interesting to the student of earthquake phenomena in the Pacific. At Auckland I was well acquainted with the remarkable group of extinct volcanoes surrounding Dairy Plat—including