30 



Sluf bcm Se^c bte[er feiner forgfäftißen imb um^ 

 fid)tiv3cn Uiitevfui^ung gelangte ^efor überbieö jur Ueber*- 

 äcugung, bag: 



6. Xddd)tQ au(5 immer'^in bic Urfac^e ber @c^Iei=* 

 fang nub ö^urc(?ung ber ?!el[en getcefen fein ntegc, 

 man fic^ boc^ immer gnr 5Innat)me gejmnngen 

 fe^e, ba§ eine 2}?ac6t, ipelcl;e bie ^raft l^citte bie 

 geVüaltigen 3s^'ftörungen an einem fo großen 

 3^()eit ber Oberfläche an3nrid;ten, au^ ,^raft 

 genng muffe Befeffen ^aben, ben babnr$ entftan* 

 benen Detritus gn entfernen unb üon einer <Steüe 

 jnr anbern gu tranöportirctt;^- ba§ ferner 



7. mit bem ^tranö^^ort ber ©efc^iebe bie ©iintoiat- 

 (5pod;e jum 5lbfd;lng gefommen fei 2- unb bag 



8. feine 2;^eorie snläfftg fei, h?e(c^e ni(^t eine anö*« 

 reicbenbe (SrlUirnng getpäl^re, fotüo(;t für ben 

 SErangport berjenigen ^eMlöde, tüelc^e anf ber 

 Oberfiäc^e liegen, a(0 berer, iüelc^e im ©anbe 

 unb Se^m be§ S)i(ut>inm§ eingebettet finb.^- 



resting mostly on stratified deposites of sand or clay, has con- 

 vinced nie, that the above assumption is no longer admissible, so 

 far as it relates to the transportation of the boulders, Rep. 

 P. I. p. 215. 



1. Whatever niay hare been the cause of the groovings, it 

 miist be admitted, that an agency, whioh was capable of shaving 

 off and wearing down such an extent of surface, must also have 

 been able to remove the detritus and to transport it from one 

 place to another» Rep. P, I. p. 215. 



2. The drift epoeh may be considered as closed with the 

 transportation of the boulders. Rep. P. I. p. 217, 



3. It is evident, therefore, that no theory can be admissible, 

 which does not at the sanie time account satisfactorily for the 

 transportation both of the boulders of the surface and of those 

 of the drift-sand and clay. Rep. P, I, p. 193. 



