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Proceedings of the Poyal Society 
contact took place, afterwards the boulder would rise over these 
obstacles, and in consequence the striae produced by them would 
diminish in depth. 
5. Tynecastle, near Edinburgh . — A basalt boulder, x 4 x 2 feet, 
was discovered, striated on both upper and under side, but the ruts 
were much deeper on the under side. The under side ruts had 
begun to be formed at the east end of boulder, — the striae on the 
upper side begun at the west end. This might be accounted 
for by supposing that the boulder had been pushed towards the 
east over hard rocks, and that floating ice from the westward 
had pushed stones over the upper surface. The smallest end of 
boulder pointed towards west. The sides of the boulder were well 
rounded. 
This boulder lay in a hill of muddy sand containing many pebbles 
of all kinds, hard and soft, such as quartz, shale, and coal. Height 
above sea, 200 feet. — Ed. Geol. Soc. Tr ., vol. ii. p. 347. 
PEEBLESSHIRE. 
At the east end of the town of Peebles there is a boulder of white 
quartz, about 3 feet long, 2 J feet broad, and with a girth of about 7 
feet. It is now built into a wall. Previously to its being thus dis- 
posed of, the stone stood from time immemorial in an adjoining low 
hill, which in consequence had obtained the popular name of the 
“ White Stone Knowe.” It is alluded to as a boundary stone in a 
title deed dated in 1436. Mr Eichardson, the Secretary of the Edin- 
burgh Geological Society, who was the first to take public notice of 
this boulder, says that “ the nearest beds of quartz are about 80 miles 
to the ]ST.W.” The boulder on its surface is smoothed and polished. 
It is, like many other boulders, rudely pointed at one end, whilst the 
other extremity is more broad and heavy. The height above the 
sea is 550 feet. — Ed. Geol. Soc. Trans ., vol. ii. p. 397. 
PERTHSHIRE. 
1. Loch Tay . — On the farm of Morenish, situated on the north 
bank of the lake, and about 2 miles from the village of Killin, there 
are several boulders worthy of notice. 
Figs. 13, 14, 15, Plate II., are intended to show the positions and 
specialties of these boulders. They were at a height of about 1400 
feet above the sea, assuming Loch Tay to be 30.0 feet. 
