202 bulletin: museum of comparative zoology. 



The "NYesenberg was believed by Schmidt to be a thin formation, 

 the thickness being estimated by him at not more than thirt}' feet. 

 From the width of the outcrop in the vicinity of Wesenberg, one would 

 expect a somewhat greater thickness. 



Distribution of the Kegel and Wesenberg formations. 



According to Schmidt the outcrops of the Kegel and \Yesenberg 

 strata form parallel bands extending from the western part of the 

 Government of Petrograd to the western border of Esthonia. In the 

 eastern part of this belt the Wesenberg is said to overlie the Kegel 

 proper, while in the western area the Wassalem intervenes between 

 the Kegel and Wesenberg. I regret to say that I have not been able 

 to trace these formations in the field as I should like to, but from what 

 I have seen in the couree of tra^"erses in the neighborhood of Wesen- 

 berg and Taps, and between Baltishport and Hapsal, and the debris 

 on the northern end of the Island of Dago, I very much doubt whether 

 these formations do outcrop as parallel belts. The distribution of 

 the Kegel is given by Schmidt in detail, as follows: — The most 

 easterly outcrop is at Poll (a short distance east of Wesenberg) where 

 the Kegel is said to outcrop in the ravine and the Wesenberg on the 

 bank above; then north of Wesenberg, at New Sommerhusen, west 

 of Taps on the railroad between Kedder and Rasick, at Penningby, 

 Nappel, Jelgimaggi (south of Reval) Friedrichshof, Kegel, Habbinem, 

 and Kreuz. 



I did not see the locality at Poll, but visited the old quarry at New 

 Sommerhusen, where the lithology and fossils are both typical of the 

 Jewe, and not at all Kegel. The locality "north of Wesenberg" is 

 probably an outcrop on the road to Haljal, and about three miles 

 north of Wesenberg. Here, where the road mounts a slight terrace, 

 is an exposure of nine feet of bluish and yellowish compact limestone 

 containing many fossils, among which were Amphilichas hohni and 

 the large Porambonites so common in the quarries at Wesenberg, and 

 which are believed to be characteristic of that formation. If the 

 strike here is approximately east and west, as it is supposed to be, 

 and as it actually is in most places, then the strata at this locality 

 must be but a short distance above the top of the Jewe, which out- 

 crops at Aluver and New Sommerhusen at approximately the same 

 level. In a ditch at Welch, about fi\-e miles northwest of this out- 

 crop, I obtained, through Herr \on Dane, some specimens whose 



