Fifth Meeting: 1st September, 1909.
Mr. A. Hamilton, President, in the chair.
Exhibit.—Mr. Thomas King exhibited a language-teaching phonograph, which he briefly described. Professor von Zedlitz, of Victoria College, at the invitation of the chairman, addressed the meeting, expressing his views as to the extent to which the apparatus would be found useful by the teacher of foreign languages.
Papers.—The following papers were read:—
1. “A Reply to Mr. Elsdon Best's Paper on ‘Maori Numeration’ in the ‘Transactions of the New Zealand Institute,’ vol. xxxix,” by H. Hongi; communicated by A. Hamilton.
Owing to the lateness of the hour, the reading of a paper (2) “On Hongi's Armour,” by Mr. A. Hamilton, was postponed to next meeting.
The following papers were taken as read:—
3. “Some Additions to the Perlidœ, Neuroptera, Planipennia, and Trichoptera of New Zealand,” by E. J. Hare; communicated by G. V. Hudson.
4. “Occurrence of Rare or New Elements and Minerals in New Zealand,” by B. C. Aston, F.C.S.
Alunogene, hydrated aluminium-sulphate (Al2(SO4)3·18H2O), or “hair salt,” occurs at French Pass in considerable quantity. About 1 cwt. of soil was received. This consisted of 10 per cent. alunogene and 90 per cent. silicate of alumina, slightly contaminated with ferric oxide. Analysis of the former showed it to correspond with the above formula.
Titanium-phosphate, or Phospho-titanic Acid.—The red scoria, and the red earth apparently derived from it, existing in considerable amounts at Antipodes Island contain comparatively large quantities of a phospho-titanic compound. The red earth contains 8.4 per cent. and the scoria somewhat less of the compound, which may prove to be the phospho-titanic acid (3TiO2·P2O5) of W. Knop (Watt's Dict. of Chem., 2nd supp.), seeing that it contains 37.1 per cent. P2O5, 61.82 per cent. T1O2, and 1.08 per cent. undetermined; is hygroscopic; and has a specific gravity of 2.75. It does not appear to have been recorded as occurring in nature before.
Titaniferous Ironsand of Campbell Island contains much more titanium than does that of Taranaki. A fine sand from Nor'-west Bay contained 31.58 per cent. T1O2, and 0.21 per cent. SnO2, with probably a small quantity of ZrO2. A coarse sand from Perseverance Harbour contained 42.18 per cent. T1O2, 0.32 per cent. SnO2, and a trace of copper.
Rock Phosphate occurs as a thin polished layer on the surface of coarse-grained granite at the Bounty Islands. The phosphate only loses 5 per cent. on ignition, and contains 11.77 per cent. P2O5.
Vivianite—phosphate of iron—occurs at Campbell Island, associated with zircons.
Selenivm occurs in the concentrates of the Talisman Mine, Karangahake, Auckland, to the extent of 0.34 per cent.
Amethyst occurs in the soil of the Eweburn State Nursery, Maniototo Plain, Otago.
5. “Notes on a Collection of Sea-anemones made by Mr. C. L. Walton,” by C. L. Walton and F. G. A. Stuckey, M.A.
6. “Unrecorded Habitats for New Zealand Plants,” by B. C. Aston.