510 



PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [Feb. 24, 



Feet. 



1 . Water-worn gravel and sand, 



stratified 12 



2. Alternating seams of fine 



sand and brownish clay, 

 the layers very numerous 

 and somewhat undulating 20 



The clay gets redder to- 

 wards the lower part, and 

 passes down into 



3. A mass of fine brick-red clay 1 7 



4 . Fine light-greyish clay, with 



thin seams of sand .... 10 



5. Sand and gravel irregularly 



disposed 10 



6. Strata of fine pale-greyish 



clay, laminated and con- 

 taining seams of small 

 sand 20 



7. Fine sand ; depth unascer- 



tained. 



In the mass of red clay the 

 skeleton of a bird was obtained 

 about twelve years ago. It is now 

 in the museum of the Marischal 

 College, Aberdeen, where it is 

 ticketed as the bones of a duck. 

 I have not seen any shells or other 

 organic remains from this excava- 

 tion ; but the workmen told me 

 that, a few years ago, they had 

 found in the lowermost clay-strata 

 the remains or impression of what 

 they thought were fossils, but 

 nothing that would bear removal. 

 No boulders or large stones were 

 seen by me in any part of this 

 excavation ; the clay-strata are, in- 

 deed, remarkably devoid of stones 

 and pebbles of every kind. 



The bottom of the cutting is a 

 little below the present high-water 

 mark. 



The greater part of the city of 

 Aberdeen appears to stand on this 

 gravel-covered clay ; and some 

 borings for Artesian wells, at- 

 tempted in different parts of the 

 town, reveal its connection with 

 the sub jacent rock. 



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