Plate XII- Sulphur, Honey-Stone, Graphite, Coal, Lignite - - f8bf61b7c988972178384f3d01ded
JUN 15 1859 · 12:05
Figures 1-3. Sulphur. 1. Native Sulphur 2. The same [Native Sulphur] 3. The same [Native Sulphur] Figure 4. Honey-Stone. 4. Honey-Stone or Mellite Figures 5-7. Graphite. 5. Graphite Plumbago 6. Clear. Period photograph.
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