1858.] JAMIESON PLEISTOCENE, ABERDEENSHIRE. 529 



rock of doubtful character in other spots. It is also not without in- 

 terest to observe that a stratum of coarse reddish clay, containing 

 pebbles of granite, quartz, and flint, covers the greensand-deposit at 

 Moreseat * . 



Fig. 5. — Outline-section along the hilly ridge from the Buchan Ness 

 to Dudwick. Length about 12 miles. 



** Level of 450 feet above the sea-level. 

 •*--}- Level of the sea. 



1. Dudwick, 563 ft. 5. Tarhenrv, 451 ft. 



2. Skelmuir, 482 ft. 6. Moreseat. 



3. Kinknockie. 7. Cruden Hill. 



4. Smallburn, 464 ft. 8. Stirling Hill, 282 ft. 



In addition to the water-worn pebbles, a few larger stoues occur, 

 with a rougher exterior and shapeless form. Some of them occa- 

 sionally reach from two to three feet in length ; and I believe they 

 are sometimes found still bigger. They are granite of different 

 varieties, and compounds of quartz and felspar varying in quality. 



Now, upon the top of the adjacent Hill of Dudwick, which reaches 

 a height of 562 feet, I found the quartz-rock covered by its own 

 debris, but the fragments all quite angular and unworn ; and on 

 a lower projection of the hill at an elevation of 480 or 500 feet the 

 same thing occurred. But, searching along the eastern flank of the 

 ridge, I found, to the north of a croft called Backhill of Dudwick, the 

 water-worn pebbles of quartz and flint occurring with considerable 

 regularity to a height of about 450 to 470 feet, beyond which they 

 appeared to cease. It seemed, however, as if some agency had dis- 

 turbed them since they were rounded, and had washed them up at 

 certain points to a higher level ; and a small flint or two may be 

 picked up even on the very summit of the hill. 



Whatever may be thought of this, I would at least draw attention 

 to the great extent of water-worn pebbles that clothe the long ridge 

 before mentioned, with great regularity, up to a height which I have 

 measured and ascertained to be 464 feet above the mean level of the 

 sea. They seem to attain their greatest development along a zone 

 from 350 to 450 feet high. They are strikingly displayed over the 

 Hill of Kinknockie, and also at Hillhead of Auquharney, where there 

 is a croft or cottage, whose foundation I ascertained to be 398 feet 

 above the sea-level. The flints are also particularly abundant on the 

 top of Cruden-hill, which is the point where the three parishes of 

 Cruden, Longside and Peterhead meet ; they cover the ground there 

 with a uniform close stratum ; but over a great part of the ridge 

 the peat lies so thick as to hide everything. 



I shall now describe a great accumulation of highly water-worn 

 shingle covering the top of a ridge in the parish of Fyvie, about 

 twenty miles inland. 



* See the Memoir above referred to. — Edit. 



