twbnhofel: expedition to the Baltic provinces. 301 



lands and from one to five miles from the latter place, are outcrops of 

 thick-bedded dolomitic limestone with very poorly preserved fossils 

 and these chiefly corals. These strata may lie between the Low^er 

 Lyckholm of Kappa-Koil and the strata of Pirk, or may be some 

 division of the Borkholm. 



The exposures at Saremois, a part of the Herkiill estate, are quite 

 extensive, occurring in ditches which have been crisscrossed over a tract 

 of about forty acres. Most of the ditches are excavated through 

 alluvium, but in many places what appear to be buried knolls of the 

 country rock have been cut through. The lithology and fauna are 

 the same as at Pirk ; but the strata are thought to be from ten to fifteen 

 feet higher in the section and they must lie almost immediately below 

 the lowest beds of the Borkholm formation, as the latter outcrop in 

 the woods between Herkiill (about a mile southeast) and Saremois, 

 and the vertical distance between the two outcrops amounts to but a 

 few feet. Corals are quite common at Saremois, while rather rare at 

 Pirk, due probably to the small size of the exposure at the latter place. 



Strata with a lithology and fauna similar to that above described 

 also occur near the village Rannakiill, about six miles northeast of 

 Hapsal. Thin bands of gray shale separate the four to six inch beds 

 of yellowish white, somewhat marly-like limestone. 



From these different localities have been collected the species whose 

 names follow. Those which are not followed by the authority also 

 occur in the Lower Lvckholm: — 



