200 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
weathering it becomes a mass of rusty yellow fragments. Fossils are 
very plentiful in the upper part of the quarry. The Jewe covers a 
large area north of Wesenberg and small quarries and ditches furnish 
many exposures. I saw the Jewe further west beyond Nemme, about 
seven miles southwest of Reval and at St. Mathias, five miles south of 
Baltishport. At both these localities the fossils and lithology were 
the same as at Jewe itself and the formation is throughout its extent 
a very distinctive one. The most common and characteristic fossils 
are: — Platystrophia lynx (very robust variety), Clitambonites schmidti, 
Hemicosmites extraneus, and Poramborites ventricosus. Equally charac- 
teristic are the peculiar conical bodies figured by Schmidt (44, p. 331). 
These appear to be of organic origin, but their exact nature is not 
known. 
Kegel formation. Dz and Ds; (the Kegel, Wassalem and, west of 
Reval, the “ Wesenberg’’) of Schmidt. 
At the typical locality, at Kegel, southwest of Reval, about eight 
feet of strata are exposed in two quarries about one and one half miles 
west of the station. The strata here are limestone without shale, in 
layers two to six inches thick. When fresh the limestone is blue and 
fine grained, but weathers to a yellow shaly mass. The fossils weather 
more rapidly than the matrix and the rock is left full of holes. The 
most abundant fossil is Cyclocrinites spasski, which occurs in immense 
numbers. Clitambonites anomalus and Asaphus kegelensis are also 
quite common. The country south of Kegel is very flat and the rock 
everywhere near the surface. Following the railroad or highway 
southwest from Kegel station, the Kegel beds with their characteristic 
fossils are seen in ditches and shallow quarries till one comes to a 
broad low ridge which is made up of a very different rock, to which 
the name Wassalem has been given. At the large quarries in Wassa- 
lem, the strata are light gray to white, very coarse-grained massive 
limestone, the lower ten feet with feebly developed partings, the upper 
three feet very irregularly bedded and containing some shaly lenses. 
The lower part is quarried in large blocks, up to three feet in thickness, 
for use as a marble. In this portion there are few fossils, other than 
joints of the columns and plates of Hemicosmites. Weathered pieces 
show that the rock is practically made up of these. The upper three 
feet contain lenticular and cross-bedded strata and lenses of fine- 
grained buff limestone with numerous specimens of Ilaenus. Fossils 
may be found in this upper portion, especially in pockets where the 
limestone has decomposed, leaving a mass of yellow, calcareous earth. 
The most common fossils are bryozoans and Hemicosmites. The 
