Diggers in the Earth

Chapters

1. 1 In a Coal MineApril6090 12:40
2. 2 Down in the QuarriesApril6090 14:27
3. 3 Houses of SandApril6090 15:36
4. 4 Bricks, their Faults and their VirtuesApril6090 12:00
5. 5 At the Gold DiggingsApril6090 12:30
6. 6 The Story of Silver MineApril6090 12:58
7. 7 Iron, The Everyday MetalApril6090 10:45
8. 8 Our Good Friend CopperApril6090 15:31
9. 9 The New Metal, AluminumApril6090 10:57
10. 10 The Oil in Our LampsApril6090 16:33
11. 11 Little Grains of SaltApril6090 15:45