432 The Hon, Mr. Strangways on the 
Green chamite bed ; of the same ; along the Tzarscoe Celo escarp- 
ment. 
Pale brown chamite bed ; on the summit of Shulcova hill ; much 
weathered : also on Penty. 
Hard sandstone with large chamites ; near Anteleva, in the quarry 
of Repolova. In situ only on the Tosna. 
Rolled masses of slaty clay ; upper beds of the same ; only in a 
ravine a little west of Samsonovsky, on the Ishora, 
Doubtful \ 
A red sandstone, which resembles that of the neighbourhood of 
the Lake Onega; sometimes much coarser and larger grained; 
almost to be called a conglomerate. As decided boulders of what is 
called in England, old conglomerate, are found (though rarely charac- 
teristic) on the banks of the Volga, I am inclined to refer these to 
the same class of rocks. 
Common on the Moscow Road. 
It is evident that all these rolled stones may be found in any part 
of the country, although we cannot be sure of finding them in any 
particular spot. I have therefore mentioned only such localities as 
happened to be known to me. 
On meeting with these blocks of stone scattered over the face 
of a vast extent of country, and usually lying on rocks of a nature 
totally different, it naturally becomes a matter of inquiry, whence 
they were derived. Without entering at large into the discussion 
of this interesting question, which is one of the most important 
