exportations of gold and silver which are made from the ports of the Sea of Cortéz [Gulf of California] on the one hand, and, on the other, the difficulties that have presented themselves to his Excellency, the Governor of that state, for giving the statistical notices which have been sought on repeated occasions by the Junta of the Mineria, both of which causes have made difficult the account which we furnish; but by those which they themselves furnished of the production of those minerals before and since the independence of the nation, and by the exhibits of various witnesses presented in the remission of bars which from thence they made to the capital of the republic, when the ports of the Pacific were sealed to foreign commerce, the production of precious metals having yielded in divers epochs not far from 4500 pounds of silver, without considering the gold (abundant enough in placers and in rivers), and from what is known, the quantities of this metal extracted have been considerable, and in more abundance than in the mineral districts of the other states of the republic.
Attention having been much called to the ley and weight of the grains of pure gold found on the surface in Quitovac, Cienequilla, and San Francisco, as well as those masses of virgin silver found in Arizuma, which wonderful riches stimulated the colonial government to despoil the proprietors of it, and afterward the King of Spain, in declaring that it pertained to his royal patrimony.
All those places in Sonora which are actually abandoned, as well as all the lands of that state, are susceptible of producing great riches. The reasons on which these assertions are founded are those which M. Saint Clair Duport mentions in speaking of the probable variation there will be in value of gold and silver in time, by