. III. DIST. CHAR. Substance. 135 

 species f. v. V. 



Matter or Substance. ( Substantia. ) 



The substance of an extraneous fossil respects the 

 material of which it is composed ; and is either 

 organic or mineral. 



A. 98. THE ORGANIC SUBSTANCE (sub- 

 stantia organica) of a reliquium, is the matter which 

 existed in the original body, and which still retains 

 the organic arrangement of its particles 



This may be either earthy or inflammable f f . 



a. 99. THE EARTHY ORGANIC SUBST. (substantia 

 organ, terrea) which principally occurs in reliquia, 

 is calcareous generally a carbonate of lime ; some- 

 times a phosphate. 



Obs. Conserrata of shells, corals, bones y &c. af- 



t For an explanation of the botanical terms, from whkh we 

 have formed those employed to distinguish the relation be- 

 tween the vegetal fossil and its original (v. cuticular, 

 truncal, cauline, c. &c.), the learned reader, unacquainted 

 with the science of plants, may consult the Philosophia JBo- 

 tanica of Linne, or Termini Botanic! , given in the sixth Vol. 

 of Amoenitates Academics ; to others we recommend tlie Ele- 

 ments of Botany, by Dr. Hull. 



f f Saline and metallic particles may also exist in the organic 

 matter of an extraneous fossil, but cannot be said properly to con- 

 stitute the organic substance, as they do not retain tlie texture of 

 the original. 



