LIST OF DIAGRAMS 
FG, 
I. Diagram of a lode 
2. A wavy lode . 
3. A ladder lode | 
4 Acontralode |. 
5. A saddle lode | 
6. A false-saddle lode . 
7. Early theories of ore genesis 
8, The Zones of the earth’s crust . . 
9. 4 lode with copper above and tin below 
fo. Secondary enrichment , . . 
II. Distribution of gold nuggets . 
I2. Magnified section of an Indicator . . . 
13. The Associated Northern ore-body, Kalgoorlie 
I+. The Great Boulder lode, Kalgoorlie 
I5. Section near the Dome mine, Ontario . v . 
6. Section across the Mount Morgan mine, Queensland 
I7. A high-level deep lead . . 
I8, Section across a deep lead . “ 
19. Section across the Rand goldfield, . v 
20. Section of Banket from the Main Reef Leader 
21. Sericite schist interbedded with Banket ; 
22. \ pyritic pebble from the Banket . . 
23. The platinum placers of the Is River, Russia 
24. latinum in pyroxenite . . 
25. Distribution of tin ores . + ; . . 
26. Section across the Mount Bischoff mine, Tasmania . 
27. Relation of the width of granite to the richness of tin placers 
28. The Braden copper mine, Chile , . ’ 3 
29. An ore-body in slate at the El Tinto mine, Spain . 
30. The North Lyell lode, Tasmania . . 
31. The Anaconda copper lode, Montana, 
‘2, The mining field of Leadville, Colorado 
3. The Louemma vein, Leadville 
4. Lead and zinc ores of Missouri . 
:5. Nickel sulphide ore of Sudbury 
36. The Victoria mine near Sudbury |, 
37. The Idria mercury mines y 
38. Section across the Idria mercury field 
30. Distribution of mercury deposits , 
10. Hematite ore hodies of Cumberland 
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