Eil i I or nil Comment. 381 
ola, Peninsular, Quincy, State of Michigan, Tamarack, Jr., 
Tamarack, Tamarack-Osceola and Wolverine. 
Missouri. 
Zinc blende, calamine, galena, magnetite and limonite,with 
cerussite, wolfram and silver ores, are exhibited, but princi- 
pally scattered as collections of private exhibitors, so that 
their educational value is impaired, especially in the cata- 
logue, where they are given without uniform geographical 
definitions. From what is shown the immense mineral wealth 
of this state appears very clearly. 
Washington University, St. Louis, has a collection of 
martite and millerite, besides the more common miner- 
als which accompany it as gangue. Besides these are the 
concentrates of the Iron Mountain ore, the St. Genevieve 
copper ores, concentrates from the Empire Zinc Company, at 
Joplin, and from the Doe Run and St. Joseph lead companies. 
Minnesota. 
This exhibit was very tasteful. On the east side of the 
space were cases of: 
1. Fragments of soft blue hematite, No. 1 Bessemer, Mes- 
abi range, Mesabi Chief Iron Co. 
2. Adams Mining Co., hard blue ore, No. 1 Bessemer. 
:$. Soft blue hematite, Adams Mining Co., No. 1 Mesabi 
range. 
4. Ditto, Lone .Jack Iron Co., Mesabi. 
Other cases contained soft and hard blue Mesabi range ore, 
From the McKinley Iron Co., Biwabik Iron Co., Iron King 
Iron Co., and Bessemer Iron Co., soft ore. A column of hard 
and specular ore, Vermilion range. Tower mine; another of 
blocks from the Chandler mine. Altogether The hard and 
soft ores were represented from mining companies as follows: 
The Adams, Bessemer, Biwabik, Franklin, Hale. Iron King, 
Lake Superior, Lone .lack. McKinley. Mesabi Chief, Minne- 
was, Mountain. New England, Ohio. Rouchleau & Hay. 
Snively. Standard, Virginia, Wyoming, Minnesota, Chandler. 
Zenith and Pioneer, from Ely. 
Building stones, slate, jasper, agates, clays, terra COtta, etc., 
were on exhibition, besides pig iron from the Duluth Furnace 
Co., and a working model of a mine from the Chandler Iron 
Co., of Ely. 
