CONTENTS. 
XI. 
CHAPTER VI. 
COAL FORMATIONS. 
Vegetation of the Coal bearing Strata. Enumeration of Families 
of Plants found Fossil. Remarks on the Scanty number of 
Genera. Dhference of Aspect and Character from the Flora 
now around us. Facts and conclusions as to mode of De¬ 
posit. Roots of Trees and Upright Stems. Various Instances. 
Coal of other formations. 
CHAPTER VII. 
COAL MEASURES CONTINUED. 
General view of Coal Measures in various parts of the Globe. 
Africa, Asia, Australia, America, Europe, and the British Isles. 
Mineralogy of Coal. Distortions of Strata. Faults. Advan¬ 
tages of actual Arrangements. References to history of the 
use of Coal. Statistics of the Subject. 
CHAPTER VIII. 
BOTANY OF PALAEOZOIC ROCKS. 
Difficulty of determining between the Strata of older Rocks. 
Instance from North Devon. Devonian System. Silurian. 
Cambrian. Paucity of Organic Remains. Plants in the old 
Red Sandstone. In the Silurian and lower Rocks. Sea-Weed 
Ancient and Modern. Earliest appearance of Life, and remarks 
on its Character. 
