400 



considerable extent ? Are they rolled, or rounded, and 

 of what size ? 



5th. Are they uniformly of one kind in substance, 

 or different ; and what are the kinds ? 



6th. Are there rocks of a similar substance, in place, 

 at any distance from them, and what is the distance 

 and direction ? 



7th. if the rallies are broken and interrupted, is it 

 by spurs of mountains, ridges of rocks, or isolated 

 hills, composed in a greater or less degree of pebbles ? 



8th. If of spurs of mountains extending to any dis- 

 tance into the valley, are there any appearances on ei- 

 ther side, of the operations of currents which may have 

 been opposed to, or set against them ? If so, what are 

 the appearances, and on which side of the spurs in re- 

 lation to the compass, are they ? 



9th. If interrupted by ridges of rocks, of what kind 

 are they, and in what direction do they run in relation 

 to the valley, and do they discover any marks of abra- 

 sion by the operation of running water, &c. ? 



10th. If interrupted by isolated hills, composed 

 mostly, or in part, of rolled pebbles, what is their cha- 

 racter, and are there rocks of the same substance in 

 place, in any direction from such collection of peb- 

 bles ? If so, what is the direction from such hills, and 

 at what distance ? 



llth. If such accumulation of pebbles are to be 

 found in a valley, are there any deep and extensive ra- 

 vines, vallies, or gaps, in the neighbouring mountains, 

 or hills, through which a violent current may have ran. 



