THE GOLD MIKES OF YTTRUARI. 
183 
selected ; but the incompetence of the machinery to crush 
any considerable quantity of quartz, combined with the 
great unhealthiness of the place, caused the abandonment 
of the mines by the Company which had been formed to- 
work them, after the death of several of their employes. 
The working of the mines, however, was continued by 
the residents. These were six hundred in number, of whom 
200 were actually engaged in mining. The author stated 
that under these circumstances the mines yielded $50,000 
per month, notwithstanding the imperfection of the means 
employed for the extraction of the metal. A large immi- 
gration followed, raising the population to about 6,000 m r 
and a Company is projected for working the auriferous de- 
posits. The author stated that quartz of very great rich- 
ness had been discovered lately. 
Tuesday , 8 th October , 1867. 
Alexander Williams Anderson, Esq., in the Chair. 
The following Donation was announced : — “ Catalogue of 
Marine Mollusks collected in the Bahama Islands in No- 
vember, 1866.” By Henry J. Krebs. Presented by th© 
Author. 
Philip Noel Bernard, Esq., and Francisco Padron, M.D. y 
were elected Members. 
Jules Francois Court, Esq., M.D., of Paris, was elected 
a Corresponding Member. 
