[ 1^3 ] 



47' PuMEX. Concretions by Means of Fire. 



1. Vulcani Black Slate 



Pumice, 



2. Ferri ; JVhite Pumice^ 



of Iron Furnaces. 



3. Cupri ; Red Copper 



Pumice, 



4. Fuligo 5 Soot. 



5. Cinerarius \ AJhes of 



Volcanos, 

 5. Mo\ds\%',RhenifhMilU 



fione, 



7. Vitreus ^ Vitreous Pu- 

 mice^ or Mack and 



green Iceland Agate, 



48, Stalactites. Concretions by Means of 

 Air. 



1. Incruftatum ; Vege- 



table Incruflations. 



2. Stillatitius ; Drop- 



ftone, 



3. Solid us ; Solid marmo- 



reous StalaBite, 



4. Flos Ferri ; Branched 



marmoreous Stalac- 

 tite. 



7. S'pzto^us'; Solid fpatofe 



Stala5lite, 

 9. Quartzofus. 



10. Pyriticofus. 



11. Plumbiferus. 



12. Zeolithus \ Red fpa- 



tofe Stalactite or 

 Zeolite. 



49. Tophus. Concretions in Water. 22 fpecies. 

 a. Metallic Tophs. 



1. Ludus \ Marly Toph- 



fione, 



2. Pertufus ; Tubular^ 



marly^ ochraceous 

 T oph-fione. 



3. Marinus *, Sandy ochra- 

 ceous Seal' oph-flone. 



5. Tubalcaini ; Bog Iron 

 Ore J in various? 

 forms. 



b. Simple Tophs. 



10. Alnminaris; Almn 

 Toph, 



12, Lebetinus ; Ccncre^ 

 tions of Tea Kettles, 

 M 2 14, Ooli- 



