Transactions oC the Ceological Society Col 5. Plate 28- 
l rasna 
(hdianka or 
JaHanca Ch . 
CoHpchzna/ 
Ivanovsky < 
Astrafld 
HwLm 
mamma- ^ < 
BTzarscoe C 3 
iljf s .^- l 
Bartashmskyy 
ColmunjJyjjA 
r//,i Jan' 
Itcolskoy 
Varemlak 
(oven 
pn -j-Xr* " 
Quarries 
vdolovu 
XCordelova 
PostH. 
’Eif quarries 
dpmidost 
CoscovaPostH 
Gatchina 
Blue cLty lowest bed 
Shale or sand 
intermediate bed 
limestone- highest bed 
jRetl earth op doubtful 
character 
a lew dauhtihL spots are 
led blank 
Outcrop apparent 
or nearly certain- 
hut 
not cieartif de/ined 
** Quarries 
Clay veins as in Ft. 2(f . 
m 
.oi -|ki 
r-s* t P * 
U 
Co a,c 
Cronstaclt 
Plan of the Strata on the lower Ishora. 
Drawn. byThe HonfPWT.EJox Strnngwavs . 
Published by W. Phillips London 1821 . 
