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APPENDIX.
APPENDIX A.
San Francisco, Cal., May 26, 1884. A. J. Bowie, Jr., Esq., Present :
Dear Sir : You will find herewith a statement of the produce of gold in the United States since its discovery in this State in January, 1848, to the close of the fiscal year ending June 30, 1883, prepared by me at your re­quest.
The imperfect methods of collecting and preserving such data in this country are so well known to statisti­cians and others as to scarcely require any apology for the inaccuracies of these estimates or the indulgence of your readers. I have long been satisfied that the pro­duce of the precious metals in this country, as well as in others, has been considerably exaggerated, and that the tendency to over-estimation is inherent in the methods adopted. My long connection with the mining indus­tries of this coast, however, through metallurgical opera­tions of great magnitude, enables me to eliminate some of the inaccuracies which have crept into published state­ments, and which have been adopted and repeated by subsequent statisticians.
Undoubtedly the most reliable method of determin­ing the produce of this country in the aggregate is that based upon the deposits of " domestic " gold made at the several mints, as stated in the directors' reports, and the
exports of uncoined domestic bullion, as shown by those
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