180 . III. DIST. CHAR. Soil. 



very modern soils, (d. 133.) Ancient and 

 less ancient reliquia, when removed from 

 their native beds., sometimes occur in mo- 

 dern or very modern strata, but are to be 

 distinguished from the genuine reliquia of 

 such soils, by their being rounded or worn, 

 like other travelled materials. 



b. ) 164. Venigenous (venigena} found in veins. 

 165. Stratigenous (stratigena') found in strata. 



c.) 166. Included (inclusa) wholly enclosed or sur- 

 rounded by the matrix or seat. 



167. Inherent (inh&rentia} sticking in the sur- 

 face of the matrix or seat The extraneous 

 fossils of veins are frequently found in this 

 state. 



168. Adherent (adharentia) when the sur- 

 rounding stone has been, in a great measure, 

 destroyed by disintegration, leaving the ex- 

 traneous fossils bare, but adhering by one 

 side to the remaining part of the matrix. 



169. Loose (libera) not fixed in, or adherent 

 to, a solid matrix or seat Very modern re- 

 liquia are frequently in a loose state. 



170. Vagous (vaga) loose, and removed by 

 various operations of nature from the soils 

 in which they were originally imbedded. 



d.)171. Solitary (solitaria) single; not many of 



the same species occurring together. 

 172. Gregarious (gregaria) many of the same 

 species found together or in company. 



