The Mining Industry 
121 
= 
3! 
IF LEA: 
METRIC TON 
Fic. 94. Comparison of this map with Figure 95 shows that lead and zinc are usually found 
together. The United States and Spain produce the greater part of the world’s supply of lead. 
8. Let different members of the class or different committees report on the 
mining of (a) zinc; (b) lead; (¢) tin; (d) gold: ‘#) silver. Use the 
following outline : 
(a) Uses, especially in your own town and at home. 
(b) Where found in the United States. 
(c) The deposits nearest to your home.. 
(d) How prepared for the market. 
(e) Increasing or decreasing in use and why. 
ap 
1 
N OF IN 
~00 METRIC! TON 
v 
Fic. 95. Zine, like lead, occurs chiefly in the United States and western Europe (especially 
Belgium and Germany). The circles on this map indicate regions where zinc is mined in small 
quantities; ore is smelted in Japan, but the other minor production areas export their ore for 
smelting.