NOMES XIII. XIV. 49 



NOME XIII. SLATE, WITH LIME. 



[PALISSITE, from Bernard Palissy, a potter 

 of surprising genius and intuition, A. D. 1580*.] 



This mixture is found where the slate joins 

 the lime-stone, either primitive or secondary. 



HYPONOME I. 



Slate, containing lime. 



HYPONOME II. 



Lime-stone, with particles of slate. 



NOME XIV. QUARTZ, WITH IRON. 

 [HELMONTITE, from Helmont, A. D. 1620.] 



The most remarkable kind, the e.iseiikiesel> or 

 iron-flint of the Germans, is only found in veins, 

 and belongs to lithology, or the study of the 

 smaller stones. But rocks of quartz and keralite 

 sometimes occur, intimately combined with iron, 

 in whole or in part. 



* See bis works, published by Faujas in 4to, 

 VOL. It. E 



