11. Soils. 
12. Clays. 
a. Arranged according to origin. 
b. Arranged according to uses. 
13. Sands. 
14. Cement and Fullers Earth. 
15. Model—Chandler Iron Mine. 
16. Mineral Paints. 
D. Hall 37. Frederick J. V. Skiff Hall. Ores 
of Precious and Base Metals, Marbles and 
Alkalies. 
(East to West) 
1. Ores. 
The ores are grouped (1) according to metal and 
(2) geographically. 
a. Gold ores. 
b. Gold-silver-lead ores. 
d. Copper ores. 
e. Zinc ores. 
f. Silver ores. 
g. Manganese ores. 
h. Iron ores. 
i. Ores of Aluminum, Arsenic and Antimony. 
j. Ores of Vanadium, Molybdenum, Uranium, Ra¬ 
dium, Titanium and the Rare Earths. 
k. Ores of Tin, Nickel and Cobalt. 
l. Ores of Mercury, Tungsten and Chromium. 1 
2. Marbles, Building Stones, etc. 
a. Serpentine Marbles. 
b. Marbles of Norway. 
c. Granites. 
d. Mexican Onyx and Travertine Marble. 
e. Marbles of France. 
f. Sandstones. 
g. Marbles of Greece. 
h. Limestones. 
i. Vermont, Georgia, Alabama and Tennessee Mar¬ 
bles. 
34 
