416 
The Hon. Mr. Strangways on the 
brook between Sopsana and Becova, also remarkable for the finest 
oaks near Petersburg, planted by Peter the Great ; and in some 
other ravines along that coast. I have reason to believe this 
portion of the sand skirts the coast at least as far as Crasna Gorka 
headland ; its exact termination on the east I must be content to 
leave undetermined.* 
I must now proceed to that portion which may be called the 
principal mass of this stratum ; and which underlies the limestone 
which it may be seen skirting along its whole escarpment. My 
farthest certain locality to the westward is Capone, where it occurs 
in its state of purest green earth ; thence it is traced westward by 
Ruditza, Gastilitzi, along the Shoundorovsky escarpment ; in the 
ravines on the west side of the valley of the Ligovca, at the foot of 
the heights of Crasnoe Celo, in its most bituminous state ; in the 
ravine of the Poulcovca in its most pyritical state, a character which 
it preserves along the Tzarscoe Celo escarpment as far as the brook 
Coshelevka : on the Popovca it begins to be sandy, which character 
increases rapidly as it advances to the eastward. The sandy beds 
increase in strength on the Slavenca, the Ishora and Tosna rivers, 
and wherever they may be seen in the escarpments between those 
points, where at last it totally banishes and occupies the place of 
the bituminous and clayey beds ; and from the Popovca eastward 
it contains chamites and the beds of globular concretions. 
In two places it occurs under a character still different from any 
that has been mentioned. On the upper part of the Ishora, in the 
neighbourhood of Anteleva and Lukozy, particularly at a cliff well 
known to those who fish in that river for trout and grayling, by 
the name of the red bank ; it is much like the red ground of the 
* The sandstone is seen distinctly in the ravines between Peterhof and Strelna, but 
•seems to have ceased before we arrive at the ravines and lakes of the latter place. 
