Wellington Philosophical Society. 557 



4. " On some New Species of Lcpidoptera (Moths) from 

 Southland," by A. Philpott. (Transactions, p. 246.) 



5. " On some New Species of Macro-lepidoptera," hx 

 G. V. Hudson, F.E.S. (Transactions, p. 243.) 



6. "On Adjustment of Triangulation by Least Squares," 

 by C. E. Adams, B.Sc. (Transactions, p. 201.) 



7. "Notes on a New Method of Determination of Minerals 

 by their Eefringence," by C. E. Adams, B.Sc. 



Mr. T. H. Hustwick informed the meeting that he had 

 recently received for examination four samples of " infusorial 

 earth " from different parts of the colony — from Dunedin. 

 Auckland, Taranaki, and Oamaru. 



It was intended, he said, if practicable, to use the infusorial earth in 

 connection with a patent for cheap and effective lighting. A chemical 

 examination showed that the four samples were all pure infusorial earth, 

 nearly as good as the kieselguhr, which was worked in Germany and else- 

 where on the Continent for the manufacture of dynamite. The sample 

 from Dunedin was very pure, and that from Auckland was fair, but the 

 other two showed only a small proportion of siliceous remains. The two 

 latter also contained a considerable quantity of carbonate of lime, on 

 account of which it was considered unsuitable for the purposes of an 

 absorptive. Mr. Hustwick assured the President thRt the earth could be 

 obtained in quantity in New Zealand. 



Third Meeting : 16th December, 1902. 

 Mr. W. T. L. Travers, F.L.S., President, in the chair. 



Papers. — 1. " On the Anatomy of Paryphanta busbyi, 

 Gray," by E. Murdoch. (Transactions, p. 258.) 



2. " On the Use of the Standard Functions in Interpola- 

 tion," by E. G. Brown. (Transactions, p. 420.) 



Annual Meeting: 18th March, 1903. 

 Mr. W. T. L. Travers, F.L.S., President, in the chair. 

 Abstbact of Annual Eepobt. 

 During the year three meetings were held, at which nineteen papers 

 were read. 



The balance-sheet shows the receipts for the year to be £184 16s. 2d., 

 and the expenditure £95 18s. 8d., leaving a balance in hand of £88 17s. 6d. 

 The Research Fund, a fixed deposit in the bank, now amounts to 

 t37 13s., wbich increases the credit balance to £126 10s. 6d. 



Election of Officers for 1903. — President— Professor 

 Easterneld ; Vice-presidents — Sir J. Hector, F.E.S. , and G. 

 Hogben, M.A. ; Council — E. Tregear, F.E.G.S., M. Chapman, 

 E. C. Harding, G. V. Hudson, F.E.S., H. N. McLeod, 

 H. B. Kirk, M.A., and C. E. Adams, B.Sc. ; Secretary and 

 Treasurer — A. H. Gore ; Auditor — T. King. 



