CONTENTS. Til 



- *** Parts. 



Surface of the matrix } 



what . page 178 

 Impression . } 



Terms distinguishing the Reliquiuin according to 

 its connection with the Soil . . . 179 



PRINCIPAL NOTES to Sect. III. 



Composition of recent bones Professor Playfair's observations 011 fossil 

 bones Carcase of a Rhinoceros found fossil, p. 41 43. Extraneous 

 bodies inclosed in amber Amber common in Prussia Amber though of 

 vegetal origin, not to be considered an extraneous fossil Shells 6cc. found 

 nearly in the recent state, particularly in Hampshire, p. 4344. Vege- 

 tal bodies frequently found fossil in an unmineralized state, p. 44. Cora- 

 position of shells, corals, and the crusts of Echini stated according to Mr. 

 Hatchett's observations, p. 47 48. Vegetal matter in the state of char- 

 coal frequent in the mineral kingdom, p. 49. Process of the change of 

 vegetal bodies into bitumen, carbon, and pit-coal, p. 49. Connection 

 between the processes of conservation and those of petrifaction, p. 51. 

 Nuclei, what not to be considered a mode of petrifaction, p. 54. I/if/-o- 

 mission can only take place under particular circumstances Theory of the 

 change produced by intromission. Mr. Parkinson's hypothesis of the pe- 

 trifaction of wood examined, p. 55 60 Distinction between petrifactions 

 by transmutation and conservata by conversion pointed out. p. 61. Mr. 

 Parkinson's excellent explanation of the mode in which some vegetal petri- 

 factions are produced, p. 62.- -Petrified leaves improperly considered as 

 mere impression not always the production of transmutation, p. 63. Dis- 

 tinctions of nuclei, p. 64. Professor Playfair's remark on the texture of 

 petrified shells, 5cc. p. 64 Explanation of the mode in which the spurious 

 nuclei of vegetal reliquia are formed, p. 69. Linnean enumeration of the 

 modes of extraneous fossils, p. 70. The term complanated substituted forco;;i- 

 pressed reason why the complanation of reliquia, on what dependant, 

 p. 74. Half-shaped Petrifaction, how formed, p. 75. Observations of M. 

 Cuvier on the fossils remains of the elephant, rhinoceros, and other mam- 

 malia, p. 77. The supposed fossil crocodile in Derbyshire, probably an 

 crthoceratites. p. 79. Winged insects very rare in the fossil state, p. 80. 

 Fossil corals sometimes mistaken for petrified funguses, p. 83. Petrified 

 wood in New South Wales, p. 90. TF.KMS used in descriptions of Echini 

 explained, p. 93. TERMS not used by Linnaeus in the sense iu which 

 we have employed them, explained, p. 95 TERMS, testaceological, ex- 

 plained, p. 97. Ten MS used in descriptions ox fulciments, i.e. corals, 



