On the 29th of September, 1845, the worl at the famous Burra Burra mines was commenced by twelve miners ; they now give employment to 1,031 miners, and support a population of nef.rly 5,000 persons. Since th commencement of the working, the minei have produced 128,400 tuns of copper ore yielding 25,700 tuns of copper, which, at th( present moment, would be worth in Adelaid( $13,415,000. The wages distributed in thes( mines amount to $4,125,000, while the dividend paid on each $25 share amounts t( $1,000. The present value of its sh'ares h $1,600,600. Such an instance of successfu mining operations has rarely, if ever, beer witnessed in any country.—American Mining Chronicle.