480 DOMAIN V. CALCAREOUS. 



1 1 kinds of fish of North America. 

 7 ... of fresh water of the differ- 

 ent parts of the world. 

 In all 105. 



MODE VIII. ORSTEN. 



Name, Some of the Swedish appellations ought to be 



Swedish. 



venerated, as that country has produced such 

 able writers in natural history, and particularly 

 in mineralogy; of which science Wallerius, 

 Cronstedt, and Bergman, must be esteemed as 

 the chief founders. The substance now under 

 view has by some of our mineralogists been 

 called swinesLone> and by the Germans and 

 French less politely stinkstein y andpierrepuajite; 

 but as the Swedish name has more brevity, and 

 does not impress a disagreeable idea, it deserves 

 to be substituted. 



Description. Orsten is merely a limestone, which, some- 

 times from a mixture of bitumen, sometimes 

 from yet unknown causes, yields a fetid smell, 

 when worked in the quarry, or in the marble 

 yards, or even when rubbed with any hard sub- 

 stance. In a geological point of view, it has 

 assumed higher consequence, since it was dis- 





