RAYMOND: CORRELATION OF THE ORDOVICIAN STRATA. 203 
matrix reminded me of the Kegel, but which were not diagnostic 
species. North of Welch there are numerous outcrops of the Jewe. 
If the Kegel be indeed present in the neighborhood of Wesenberg, it is 
either very thin or else does not carry the fauna of the Kegel at Kegel. 
The next locality mentioned by Schmidt, that between Kedder and 
Rasick, is forty miles west of Wesenberg, and less than thirty miles east 
of Kegel. I did not visit this Jocality myself and am unable to find any 
adequate faunal lists for it or for any of the other localities mentioned 
between it and Kegel. Owing to its proximity to the latter place, 
however, it is very probable that one finds here a real Kegel fauna. 
Schmidt gives the following localities from east to west, for the 
Wesenberg: — from Polja, on the River Pljussa in the western part 
of the Government of Petrograd, then at Paggar, Piilse on the stream 
Isenhof, at Poll, Raggafer, Wesenberg and other outcrops on the 
railroad in that vicinity, at K6rwekiill north of Taps, at Wait south and 
a little east of Reval, then southwest of Reval at Forby, Munnalas 
and Paekiil, and as boulders on the Islands Oesel and Dago. Of these 
localities I have seen only Wesenberg and the localities on the rail- 
road as far as Taps, and the loose boulders on Dago, but have also 
seen material from Munnalas. The fossils listed by Schmidt from 
Potja, Paggar, Piillsse, Poll, Raggafer, and Korwekiill leave no doubt 
that these eastern localities belong to the Wesenberg. When one 
inspects the lists, usually very meager, from the more western localities, 
beginning with Wait, one finds however, a marked change. In these 
localities the common, and usually the only fossil, is Cyclocrinites 
spasskii, a typical Kegel fossil, but one so rare at Wesenberg that I was 
unable to find it, though Schmidt has listed it from that locality. 
On the shore at Kertel, on the northern side of the Island Dago, 
numerous angular blocks of limestone are found which are not seen 
in place, but which are evidently derived from a ledge not far below 
water-level. The blocks contain great numbers of Cyclocrinites 
spasskii and lesser numbers of other typical Kegel fossils. At the new 
factory at Hohenholm, west of Kerte], this same limestone was seen 
in a trench immediately in contact with the Lyckholm. 
The fauna of the Kegel has never. been carefully listed, the best 
enumeration being that given by Schmidt (44, p. 34). This one is, 
however, subject to considerable revision, and contains fossils found in 
both the Jewe and the Wesenberg. In both the Kegel and Wesenberg 
the trilobites are most important, because best known, and a study 
of their distribution throws considerable light on the present subject. 
Of nine trilobites which are supposed to be restricted to the Wesen- 
