154 DOMAIN X. TRANSIL1ENT. 



of the transition has given rise to the deno- 

 mination, which implies that the substance 

 has leaped, as it were, from one to an- 

 other. 



These rocks are extremely interesting in 

 the study of Geology; and the learned 

 reader will observe, that this treatise forms 

 a gradual introduction to that sublime 

 science, or rather study ; for, even in the 

 German sense of Geognosy, or knowledge 

 of the shell of the earth, it can scarcely 

 ever be supposed to arrive at the perfection 

 of a science. 

 istinctfrom Great care must be exerted not to con- 



Adherent. 



found the rocks which are merely adherent, 

 or composite, with those that really gra- 

 duate into another. Saussure, in speaking 

 of a Russian traveller, says, that he would 

 have boldly asserted that a roasting goose 

 graduates into the spit. Thus some theo^ 

 rists have conceived that lime becomes 

 flint, or flint graduates into lime, from the 

 mere mixture of the particles near the line 

 of their junction. The most proper and 

 undoubted graduations occur only among 



