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1870 Plate 6. Longitudinal Elevat … Geologic Atlas Plate 6. Longitudinal Elevat … |
1870 Plate 7. Longitudinal Elevat … Geologic Atlas Plate 7. Longitudinal Elevat … |
1870 Plate 8. Cross Sections Gold … Geologic Atlas Plate 8. Cross Sections Gold … |
1870 Plate 11. Cross Sections Vir … Geologic Atlas Plate 11. Cross Sections Vir … |
1870 Plate 12. Sections, Comstock … Geologic Atlas Plate 12. Sections, Comstock … |
1870 Plate 9. Cross Sections Virg … Geologic Atlas Plate 9. Cross Sections Virg … |
1870 Plate 10. Cross Sections Vir … Geologic Atlas Plate 10. Cross Sections Vir … |
1913 Main Coal Basin, New South W … Geologic Atlas Coal Resources of the World. … |
1913 Collie Coalfield, West Austr … Geologic Atlas Coal Resources of the World. … |
1913 Fu-Shun Geologic Sections. M … Geologic Atlas Coal Resources of the World. … |
1913 Witbank, South Africa. Coal … Geologic Atlas Coal Resources of the World. … |
1913 Cross-sections in France. Co … Geologic Atlas Coal Resources of the World. … |
1913 Coal Fields, France. Coal Re … Geologic Atlas Coal Resources of the World. … |
1913 Coal Fields, France. Coal Re … Geologic Atlas Coal Resources of the World. … |
1913 Coal Fields, France. Coal Re … Geologic Atlas Coal Resources of the World. … |
1913 Coal Fields, France. Coal Re … Geologic Atlas Coal Resources of the World. … |
1913 Coal Fields, France. Coal Re … Geologic Atlas Coal Resources of the World. … |
1913 Coal Fields No. 2, Austria. … Geologic Atlas Coal Resources of the World. … |
1913 Coal Fields No. 3, Austria. … Geologic Atlas Coal Resources of the World. … |
1913 Coal Fields No. 4, Austria. … Geologic Atlas Coal Resources of the World. … |
1913 Coal Fields No. 5, Austria. … Geologic Atlas Coal Resources of the World. … |
1913 Coal Fields No. 6, Austria. … Geologic Atlas Coal Resources of the World. … |