PRECIOUS AND ORNAMENTAL STONES AND DIAMOND CUTTING.[1]

[Footnote 1: Abstract from Census Bulletin No. 49, April, 1891.]

By GEORGE FREDERICK KUNZ.

The statistics of this report are divided into two sections: First,

the discoveries and finds of precious stones in the United States and

the mineral specimens sold for museums and private collections or for

bric-a-brac purposes; second, the diamond cutting industry.

Scientific American Supplement, No. 810, July 11, 1891 · 第 26 / 56 题