XX CONTENTS. 
PAGE 
were probably formed. — Chemical Effect of Animal Matter 
in discharging the Color from Red Sandstone. — Origin of 
the prevailing tint to which the System owes its Name. — Suc- 
cessive Modes in which a Metal may exist. — The Restorations 
of the Geologist void of Color. — Very different Appearance of 
the Ichthyolites of Cromarty and Moray, . ° - 226-242 
CHAPTER XT: 
The Cornstone Formation and its Organisms. — Dwarf Vegeta- 
tion. — Cephalaspides. — Huge Lobster. — Habitats of the ex- 
isting Crustacea. — No unapt representation of the Deposit of 
Balruddery, furnished by a land-locked Bay in the neighbor- 
hood of Cromarty. — Vast Space occupied by the Geological 
Formations. — Contrasted with the half-formed Deposits which 
represent the existing Creation. — Inference. — The formation of 
the Holoptychius. — Probable origin of its Siliceous Limestone. 
— Marked increase in the Bulk of the Existences of the Sys- 
tem. — Conjectural Cause. — The Coal Measures. — The Lime- 
stone of Burdie House. — Conclusion, . 3 . - 2438-259 
IcHTHYOLITES OF THE OLD Rep SanpstoneE—from Agassiz’s 
‘Poissons Fossiles,”’ G cs B . . . - 261-264 
Nores . : é . q ‘ ; : : . 265 
APPENDIX 3 4 x : : = : =: «808 
