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 locality 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 A'icinity, at Korwekiill 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 ISIunnalas. The fossils listed by Schmidt from 

 Polja, 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 Cydocrinitcs 

 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 Cydocrinitcs 

 spasskii and lesser numbers of other typical Kegel fossils. At the new 

 factory at Hohenholm, west of Kertel, 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, sul>ject 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- 



