52 . III. DIST. CHAR. Mode. 



external form of the original, 2. Intromission, or 

 the introduction of mineral particles into the or- 

 ganic body, so as to assume its internal structure. 

 3. Transmutation, or a total, chemical change in the 

 original matter and its texture, the external form 

 only remaining.^ 



a. 6. REDINTEGRATION (Redintegratio). In this 

 wocfe substitution does not take place, until the 

 whole, or some principle part, of the original is re- 

 moved by putrefaction, &c. and an empty cavity left 

 in the surrounding matrix, of the size and figure of 



destroyed substance the cavity being afterwards 



filled with mineral matter, which receives, and thus 

 renews, as in a mould, the external form of the 

 organic body. 



Obs. Petrifactions, formed in this manner, are 

 common, particularly in stones with an earthy frac- 



f In Redintegration the form of the organic body is renewed 

 in Transmutation, retained 

 in Intromission, assumed. 



As the materials of the petrifactions, in transmutation, are evi- 

 dently derived from the original bodies, it may be conceived, that 

 this mode ought to rank under conservation (. III. 1.); but we 

 must once more observe, that principles which have existed in an 

 organized state, are to be considered, when under a new combina- 

 tion, of as mineral, if the original texture be lost in the change of 

 substancjp. It is not tlit principles alone which distinguish organic 

 from inorganic matter; but the principles combined with the 

 organic structure Fossil <70rft0w,possessing the vegetable texture* 

 is organic, without it, mineral matter. 



