_Gold and silver produce of Central America._ ══════════════╤═════════════╤════════════╤═════════════ │ GOLD. │ SILVER. │ BOTH METALS. ──────────────┼─────────────┼────────────┼───────────── 1804 to 1848 │ $8,800,000 │ $4,400,000 │ $13,200,000 1848 to 1868 │ 5,000,000 │ 3,000,000 │ 8,000,000 ├─────────────┼────────────┼───────────── Total │ $13,800,000 │ $7,400,000 │ $21,200,000 ──────────────┴─────────────┴────────────┴───────────── The mines of the Provinces of Panama and the Veraguas are not worked so extensively as they deserve to be. A small quantity of gold is annually produced in the Republics of Nicaragua, Honduras, Costa Rica, and San Salvador. The Costa Rican mint, in 1852, coined between fifty and one hundred thousand dollars annually. The actual gold product is estimated at ten times this amount. The most important mines in new Granada (Colombia) are found in the State of Antioquia. In 1868, the yield was $1,500,000 gold; $193,000 silver. The detritus of all the rivers of this State is auriferous. An English company works the Marmato gold mine and the Santa Anna silver mine, near Honda, on the Magdelina River. They have provided twelve stamping mills, representing one hundred and ten heads, which crush from ten to nineteen thousand tons per year, yielding, on an average, eleven pennyweights eleven grains of gold per ton. End of the Project Gutenberg EBook of Is a Ship Canal Practicable?, by Sylvanus Thayer Abert