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Proceedings of the Royal Society 
21x5x4 feet, lying with longer axis E. and W., and at height of 
about 300 feet above sea. If it also came from Bathgate Hills it 
probably had to come by floating ice, round Tornain Hill, by valley 
between Tornain Hill and the Crow Hills. 
(4) In channel of Eiver Almond, below Kirkliston, a boulder of 
Old Eed Sandstone conglomerate, 5 J x 4J x 4 feet ; nearest rock for 
which, is at Callander, about 40 miles to N.W., with several 
valleys and ranges of hills between. 
(5) At Eatho Eailway Station, rocks smoothed and striated on 
west sides, the direction of the striae being W.K.W. {Seventh 
Report^ pp. 23, 24). 
2. Kirkliston. — The remarkable stone known to archaeologists as 
the “ Catstonef bearing a very ancient Latin inscription, which the 
late Sir James Y. Simpson deciphered, is described by him as ‘‘a 
massive unhewn block of secondary greenstone, many large boulders 
of which lie in the bed of the neighbouring river.” The block is 
7 feet 3 inches in length and 12 feet in circumference {Proc. of 
Society of Scotch Antiquaries^ vol. iv. p. 122). 
Midlothian or Edinburghshire. 
1. Pentland Hills. — The late Charles Maclaren was the first 
who described e boulders on these hills. The one of most interest 
is of mica slate, weighing 8 or 10 tons. The nearest spot from 
which it could have come is at or near Loch Vennacher or Loch 
Earn, about 80 miles to the K.W. 
With reference to the transport of this boulder, Mr Maclaren 
says: — “To reach the spot where it lies, it must have passed over 
extensive tracts of country from 500 to 600 feet lower than this 
spot. Even were all Scotland converted into a mer de glace, like 
Greenland, no moving mass in the shape of a glacier could carry this 
boulder (and there are many such) from its native seat in Perthshire 
or Argyleshire to Habbie’s Howe. An iceberg from the Korth or 
West Highlands, and floating in a sea 1500 or 2000 feet above the 
present level of the Atlantic, is an agent capable of effecting the 
transportation of the stone, and offers, I think, the only conceivable 
solution of the problem” {Edin. New Phil. Journal, 1846, p. 138). 
Eeferring to this boulder, and to another, also of mica slate, on the 
Pentlands, weighing about three quarters of a ton, the late Professor 
