After this explanation of the official character of these returns, a transcript of the figures given in the last exhibit as the average yield of gold per ton of quartz crushed will be all we think necessary in answer to the inquiry we have proposed. We give them just as they stand in the returns for December, 1863, only premising that the relative yield of the several mines is found to vary very considerably from month to month, being at one time higher, and at other times again somewhat lower, and this from natural causes which have already been explained, while the total amounts, when taken together, exhibit a steady increase in the general yield of the whole. The figures stand as follows:-- DECEMBER, 1863. _District._ _Yield of Gold_ _per Ton of Quartz._ Stormont (Isaac's Harbor) 2 oz. 10 dwt. 0 gr. Wine Harbor 10 " 6 " Sherbrooke 1 " 7 " 0 " Tangier 14 " 12 " Montague 5 " 9 " 8 " Waverley 9 " 11 " Oldham 15 " 12 " Renfrew 1 " 2 " 0 " Ovens[P] 18 " 9 " The difference in yield between the districts is here very considerable, as it happens,--yet in the month of October the average yield at Oldham was 1 oz. 16 dwt, 20 gr., and at Renfrew 2 oz.; while for November it was at Stormont 3 oz. 2 dwt. 12 gr., at Tangier 1 oz. 10 dwt, at Waverley I oz. 3 dwt. 12 gr., and at Oldham 1 oz. 8 dwt. The _maximum_ yield per ton was 50 oz. at Wine Harbor, 12 oz. at Sherbrooke, 11 oz. 12 dwt. at Oldham, and 5 oz. 15 dwt. at Stormont, for the same period. "The average yield," says Professor Chace, "per ton of quartz, of the gold-fields of Nova Scotia will, it is believed, compare favorably with that of either Australia or California, while some of the maximum yields _indicate ores of unsurpassed richness_."