282 
Proceedings of the Poyal Society 
EXTRACTS FROM PARERS BY THOS. F. JAMIESON {ELLON). 
Aberdeenshire and Perthshire. 
As it is an object of the Committee to collect information 
about boulders from all reliable sources, the following notices are 
taken from papers by Thomas F. Jamieson, Esq., published some 
years ago in the Proceedings of the London Geological Society : — 
(1.) In his paper “On the Pleistocene Deposits of Aberdeenshire” 
(“Quart. Journ.” for 1858, p. 512), Mr Jamieson describes the 
“ mounds and, ridges of coarse ferruginous shingle and gravel , all 
water rolled,” situated to the north of the town of Aberdeen, near 
the seashore. “ The fields abound with large boidders , mostly of 
syenitic greenstone and other varieties of trap, similar in quality to 
rock in situ , a few miles to the west, near the Menie coastguard 
station ; I found these large boulders of trap, granite, and gneiss, 
resting on the top and surface of the gravel ridges , some of them 
measuring 6 feet in length, and more or less rounded in form. I 
traced them also among the low hillocks of blown sand, occurring 
sometimes singly, sometimes in clusters, and of various sizes up to 
11 or 12 feet in length. In a field on the farm of Drums, a 
gigantic granite boulder occurs, known as ‘the grey stone/ I 
found it to measure 54 feet in circumference, with a height of 
about 7 feet above the ground. It has no sharp angles, and most 
of its exterior is rounded. Another immense block, also apparently 
a transported mass, is seen — 78 feet in circumference, and projecting 
6 feet out of the ground — a coarse-grained greenstone. 
“ These ridges consist of highly rolled fragments of rock of all 
sizes, from coarse gravel up to boulders 2 feet in diameter. On the 
top of one of these gravel ridges, a little to the north of Drums, I 
found a boulder of coarse crystalline rock measuring 8x5 feet ; no 
sharp angles occur on its surface ; a layer of red clay, about 9 inches 
thick, overlies the gravel at this spot. This boulder rested im- 
mediately upon the gravel, but clay encircled its base ; another large 
boulder of greenstone lay beside it. 
“ These are instances of large transported boulders sitting on the 
top of abrupt ridges of water-worn shingle.” 
