Vol. 55.] CHALK AND DRIFT IN MOEN AND EUGEN. 319 



same angle southward, beyond which is a third section exhibiting 

 similar relations.^ 



(3) At the Wissowerbach is found a similar apparent inter- 

 calation of the tripartite Drift ; but here the uppermost clay is 

 thicker and contains pockets of sand. In fact, these three deposits 

 occur in several places ; and, in some, a line of scattered boulders 

 may be seen in the bottom clay just above the Chalk. One of the 

 largest of them was about 5 feet in diameter, and the surface of 

 the Chalk beneath seemed to be slightly depressed — probably a 

 result of solution under pressure. 



We may conclude, then, from these three groups of sections that 

 & tripartite division exists in the Drift, whatever explanation we 

 may offer of its relations to the Chalk. 



(4) The next section introduces a peculiar Boulder Clay, which 

 we saw well exhibited in the neighbourhood of the Waldhalle Re- 

 staurant. To the south, at or near Wissowerklinken, this clay rests 

 on Chalk with sloping bands of flint. It is whitish, full of more or 

 less angular flints, but it also contains some boulders of crystalline 

 rock. From it two bold aiguilles have been sculptured. The 

 accompanying section (fig. 6) was drawn from the edge of the cliff 

 «ast of the restaurant, near a third and smaller aiguille of the 

 same clay, and shows that deposit overlying the ordinary Drift. 

 This diagram and the next (fig. 7) represent the southern and 

 northern faces of the same rock-buttress, and indicate that the 

 Chalk rises, apparently abruptly, on the seaward side of the ordi- 

 nary Drift. The basal line of the boulders in the (presumably) 

 lower clay here seems to be vertical,^ but we think that both 

 the Drift and the surface of the Chalk more probably dip inland 

 at a moderate angle. We were convinced by our examination 

 of the cliffs that near here they exhibit a difference of at least 

 50 feet in the level of the surface of the Chalk, and give a section of 

 a guUy descending northward to the sea : the whitish Boulder Clay 

 extending almost horizontally over both the Chalk and the Drift of 

 ordinary type. 



(5) The next section, from the part called Fahrnitzer Ufer, 

 exhibits a considerable mass of Drift, from 40 to 50 feet in vertical 

 height, backed or flanked by Chalk, which forms the left-hand 

 portion of the cliff. Against the latter a Boulder Clay rests 



^ See Johnstrup, Zeitschr. d. Deutsch. Gaol. Gesellsch. vol. xxvi (1874) p. 533, 

 and D. G. Berendt, ibid. vol. xli (1889) p. 148. These sections afford an excellent 

 example of the diversity of interpretation of the same evidence. Berendt sees 

 clear evidence of folding, especially in the southernmost section, without, how- 

 ever, accounting for theextraordinarilj' irregular form of the upper arm of clay 

 (see his diagram). H. Credner (op. cit. p. 366) observes that Berendt's fold is 

 founded ' auf einer argen Tauschung,' and says that the relations of the Chalk 

 and Drift at the Kielerbach are due to faults, three in number. Berendt 

 retorts, op. cit. vol. xlii (1890) p. 583, that Oredner's faults have no sounder 

 basis, for he had been to the spot and had hunted for them in vain. 



- The section is inaccessible, and the sketches were made from above, so that 

 the apparent slope may be anything but the true one. 



