45 



Among these, is that of rolled or water worn peb- 

 bles of different kinds ; and also that of the wave like, 

 or undulating appearence of almost every section of 

 alluvial formation, whether perpendicular to the sur- 

 face, or inclined, shewing the operations of a current 

 from the north east. 



The subject of rolled pebbles is, when viewed in its 

 full extent, one of the most interesting geological facts, 

 that is, or can be presented to the human view ; for 

 they not only give us an idea of the formation of mi- 

 neral substances in general, being composed of almost 

 every species of rock ; but they speak, in a language 

 that cannot be misunderstood, and tell us of some of 

 the physical changes which this continent, and perhaps 

 every other, has undergone ; and of the nature and ex- 

 tent of those changes. They tell us, in the most em- 

 phatick terms, that they were, by a resistless current, 

 torn from their primitive beds, and hurled in irresisti- 

 ble confusion to where they now remain. 



These unequivocal proofs of universal desolation, 

 are interspersed upon the borders of almost every river 

 in the known world, which has its source in, or passes 

 through any distance of primitive, transition, or secon- 

 dary formation of rocks. 



It is alleged by some, that water worn or rolled peb- 

 bles are, in general, brought down by the currents of 

 rivers, and streams of running water. 



If this be true, it would tend very much to prove, 

 that they were not washed up by the ocean, and left 



