I. In a Coal Mine

 II. Down in the Quarries

 III. Houses of Sand

 IV. Bricks, their Faults and their Virtues

 V. At the Gold Diggings

 VI. The Story of a Silver Mine

 VII. Iron, the Everyday Metal

 VIII. Our Good Friend Copper

 IX. The New Metal, Aluminum

 X. The Oil in our Lamps

 XI. Little Grains of Salt