Feather stonhaugK's Geological Report. 23 



level, or to causes which have removed other strata, geologists 

 may divide in opinion ; but the absence of all evidence of a 

 disturbing force commensurate with such extended effects, 

 strengthens the first conjecture, which recommends itself, by 

 the simplicity of its fitness, in accounting for the phenomenon. 



The following tabular view of the principal known rocks 

 exhibits such a section as might have existed in nature if all 

 the beds had been deposited in one locality, and had never 

 been disturbed. It also presents, as geologists will perceive, 

 for the first time in any tabular view, the new arrangements 

 of that important portion of the column hitherto designated as 

 grauwacke and transition formations, by those distinguished 

 leaders of the science, Mr. Murchison and the Rev. Adam 

 Sedgwick. 



