MOJDE VJI. SAUSSURIXJE. 



the goldsmiths and assayers of Paris. I have 

 seen no other sort among them. It is so much 

 the better, as it is blacker, and more compact. 

 It is certainly , properly speaking, neither a ba- 

 salt nor a schistose jasper. It is said to come 

 from Germany, by the way of Nuremberg : but 

 those who sell them know nothing more of it. 



" Corneenne belongs either to primitive or 

 transitive earths. It never contains organised 

 fossile bodies. Sometimes it forms thick beds, 

 sometimes it presents itself in masses, in which 

 the stratification is not perceptible. It consti- 

 tutes in this instance the base of certain amyg- 

 daloids, or glandular rocks."* 



Brochant is equally perplexed. The corne- 

 enne y he says, is sometimes siliceous schistus, 

 sometimes Lydian stone, sometimes the clay- 

 slate of Werner, hornblende slate, wacken, trap. 

 An appellation so vague ought to be finally dis- 

 missed. The other pierres de corne of the French 

 will be found in their proper divisions ; but as 

 that analysed by Saussure himself contained 

 magnesia, which rarely occurs in the stones 

 above mentioned, it is proper to confine his 

 illustrious name to the present division, which 

 has scarcely attracted the notice of-mineralo- 



* Brongniart, i. 560, 



