172 



ANNUAL REPORT SMITHSONIAN INSTITTJTTON, 1917. 



may be vindicated and that valuable deposits may be found hereafter 

 in this vicinity. 



It is difficult to avoid the conclusion that the South American Andes 

 are somewhat less intensely mineralized in precious ihetals than the 

 corresponding chain in the northern continent, and that even progress 

 and enterprise will be unable to raise its production of gold and silver 

 to approach the figures attained by North America. 



APPENDIX. 



Production of yold and silver in the American Continent for 1913. 



(From tho reports of the Director of the Mint and from tables in Mineral Industry). 

 [Value of 1 kilogram: Gold, $664.60; silver, S19.] 



1 Estimated; no exact figures available. 

 3 Figures of 1912. 



3 Probably too low. 



4 For 1912: See Report of iJirector of the Mint for calendar year 1913, p. 247. 

 6 Fiscal year 1912-13. 



