Proceedings, &c., 1866. 309 
lection, and Librarian, together with Drs. Barker and Wilkie, 
Professor M‘Coy, and Messrs. Bonwick, Gillbee, and Lang, members 
of Council, retired from office at the close of the year. Messrs. 
Aplin, Rusden, Rawlinson, Von Guerrard, Professor Halford, and 
Rev. Dr. Bleasdale, were the members of Council remaining in 
office. 
Dr. Mueller read a paper on “‘ New Coleoptera” by the Count De 
Castelnau, prefacing it, by calling attention to the Count’s reputa- 
tion as an Entomologist, and of the zeal he had displayed while 
leader of a party sent by the French Government to the tropical 
parts of South America. 
Several rare specimens of Coleoptera were exhibited by Dr. 
Mueller on the part of the Count. 
The adjourned discussion on Mr. Thompson’s paper was resumed, 
and the model of a percussion table on an improved plan, exhibited 
and explained. Mr. Thompson stated that the Port Phillip Company, 
finding the loss amounted to £35,000 per annum, had commenced 
using the table, after undertaking a series of experiments to test its 
value, and with marked success. From experiments made by him- 
self the following results had been obtained :—183 tons yielded 
5130z. 17dwts. ; the cost was £560, and the profit £1,420. 
The medel exhibited was constructed on a scale of ? inch to the 
foot. 
In the long discussion that ensued, Mr. Gideon 8. Lang con- 
sidered the machine as likely to effect a revolution in the crushing 
of quartz. And as to its great importance, Messrs. Cosmo Newbery, 
Ellery, A. K. Smith, and other members bore testimony. Mr. Smith 
offering his establishment to Mr. Thompson for the purpose of 
carrying out any further experiments he might think necessary. 
(Signed) Rost. L. J. ELLERY. 
10th December, 1866. 
10th December, 1866. 
ORDINARY MEETING. 
The President, R. L. J. Ellery, Esq., in the chair. 
The following contributions were announced :—“ Catalogue of the 
Mammalian Fossils discovered in Ireland,” Three pamphlets on 
the ‘‘ Granitic Rocks of Donegal”—by R. H. Scott, Esq. “On an 
Undescribed species of Petrel, from the Blue Mountains of Jamaica,” 
and ‘‘ Notes on the Genus Chiasmodon”—by Dr. Alex. Carte. Vols. 
3,4, 5, 6, and 10, ‘Transactions Geological Society of Ireland,” 
and Vol. 1, part 1, “ Royal Geological Society of Ireland”—pre- 
sented by the Society. No. 38 “ Fragmenta Phytographize Australi” 
—presented by Dr. Miieller. 
Dr. F. Miieller read a paper entitled “Characteristics of an 
Undescribed Senecio, from South Africa,’ which the author had 
