:{so The American Geologist. December, 189a 
I DAHO. 
There arc some Lii'ii odd exhibits from various localities. 
among which are gold, silver, copper and lead ores, including 
a heterogeneous collection by the State itself. Four exhibits 
of tin from Boise City, Silver City and Albion, besides one 
each of palladium and antimony from Gibbonsville, complete 
the exhibit of useful metals. Thirty-seven localities con- 
tribute copper ores, some of them fine specimens. 
Idaho produced about KM), 000 oz. of gold in 1 HU'2 from 
placers. 
The De Lamar mine in Owyhee county exhibits native sil- 
ver. The Cceur d' Alene district furnishes argentiferous lead 
in enormous quantities. In the year I s«>2, according to a late 
authority, its product of silver was 1,903,000 ozs., and of lead 
73,000,000 lbs. Her display is a very handsome one. 
Iowa 
Shows lead ore from the lower magnesian limestone, and 
some iron ore. 
Kentucky 
Shows limestone ore and limonites from Pergan Bank and 
Clear Creek and limonites from Lyon and Estill counties, 
and Grand Rivers; kidney ore from Mt. Savage, limestone 
ore from Ashland, and limonites from Beaver creek and Olym- 
pia. Besides these an exhibit of the same ore from Middles- 
borough, Bee Spring, Keedyville and Greenville. Kentucky, 
and by the Trigg Furnace Co., from Trigg. 
Michigan. 
. Of the enormous mineral wealth which is included in the 
state, the following sources attain representation : Iron ore. 
from the Gogebic and Menominee ranges; hematite, from 
the Negaunee, and magnetic ore. from the Champion mine: 
also ores from Ishpeming. 
The copper ores represent the Ahmeek, Allouez (copper- 
bearing) conglomerates; native copper from the Arnold 
mine, Keweenah ; amygdaloids. from the Atlantic mine; con- 
glomerate, from the Calumet and Hecla. with the commercial 
copper made from these, and amvgdaloids, native coppers, 
battery and tailing samples, dressed mineral, etc.. from the 
Franklin, Huron Mills, Kearsargc. Mendota, National, Oscc- 
