468 Proceedings. 
Helices, amongst which he could distinguish the Helix busbyi and the Helix 
dunnie. Mr. Gillies went on to exhibit and to describe shells which he had 
obtained at the Waitangi Falls and in the northern streams. 
Captain Hutton said Mr. Gillies deserved the thanks of the members of 
the Institute for the valuable services he had rendered to the geology of 
New Zealand. 
3. A paper “On Thames Auriferous Quartz,” by Mr. George Ford, 
Gold-mining Chemist, of Australia, was read by the Secretary. 
The paper contained much valuable information as to the character of 
Thames gold, modes of its extraction, indications for judging of its presence, 
value, &e. It had been written by Mr. Ford for the owners of the “ Bobbie 
Burns” claim at the Thames, who had submitted for examination a portion 
of outside casing, not taken from a leader. A request was made to the 
meeting that the contents of this paper should not be made public for 
the present, the shareholders themselves having been at considerable 
expense in obtaining it. 
Captain Hutton warned the miners against the use of cyanide of 
potassium, as the result of it would be to dissolve the gold. He, however, 
approved of the use of Mr. Crook’s sodium amalgam as a corrective. 
Captain Goldsmith drew attention to the fact that the separation of the 
gold was often impeded, and loss occasioned, by clay getting into the 
stamper box and mixing with the mercury. 
Turrp Meetine. 6th July, 1868. 
Frederick Whitaker, President, in the chair. 
The following contributions were laid upon the table :— 
Golden pheasant, from the Auckland Acclimatization Society. Fossil 
Pecten, from Te Pahi, Kaipara—Mr. Kirk. Work on the anatomy of 
Hatteria punctata, by Albert Günther—írom the author. Auriferous 
quartz, from the “Bobbie Burns” claim—Mr. W. Aitkin. Copy of the 
Auckland Times, 12th September, 1842, found at an old native burial-place 
at the Thames—Mr. H. M. Jervis. One rare Murex, one rare Venus—Mr. 
Traill. Specimen of king penguin, captured at the Bay of Islands—Captain 
Hutton. One skin of huia, one of Apleryr oweni, from Mr. Buller, 
epe mug. in exchange for skins from museum collection ; and one skull of 
fish (unknown), collected at Hokitika, by Mr. Murdoch. 
Moved: snd: cneriod,: thah the: thanks of the meeting be given to the 
: — some rcc in —— Mortar,” by James Stewart, 
