...course the appearance of wolfram is a sign, that most probably tin may be found in the vicinity, &c. Great sums of money have been lost in the United States,...found to contain them elsewhere; and of course the probahility was ag-ainst their being found in that class of rocks here. ' A knowledge of the nature...

...course the appearance of wolfram is a sign, that most probably tin may be found in the vicinity, £jc. Great sums of money have been lost in the United States,...against their being found in that class of rocks here. * Until lately we have restricted nature to two modes of acting; by fire, and by water: now, it is...