156 Machintosh—Brimham Rocks. 
lamination, as might be expected, and the great furrows often point 
out the lines of bedding. The so-called Idol Rock, above mentioned, 
which is about 20 feet high, and upwards of 40 feet in circumference, 
rests on a pedestal about 3 feet in breadth below, and much nar- 
rower above. If the undermining action of the sea had proceeded 
a few inches farther, this ponderous mass must have fallen, as has 
- evidently been the fate of 
other masses in the neigh- 
bourhood. 
Perforated Rocks. — 
Among these rocks we find 
holes of various forms and 
sizes; and the way in 
which they have been 
bored may be seen on the 
sea-coast at the present 
day. There are two or 
three nearly circular per- 
forations in the Cannon 
Rocks, Brimham. One of 
them is about a foot in 
diameter, from 20 to 30 
feet in length, and almost 
quite straight. There is 
a groove along the side of 
a projecting rock which 
ere sie aa looks like a continuation 
The Idol Rock. (The Pulpit Rocks are to theright.)— Of one side of the perfo- 
Brimham Rocks. ration. 
Rocking Stones.—These truly wonderful phenomena could never 
have been fashioned and poised by human hands, or formed by a 
vertically operating or atmospheric agent. They number six or 
seven, four being in one group. Each would appear to be a remain- 
ing portion of a stratum which has been denuded all round and 
beneath, so as to leave them with one or two supports sufficiently 
small to allow them to be easily set in motion. ‘These stones, and 
the stones on which they rest, have evidently been one continuous 
mass of grit, with a line of bedding, into which the sea must have 
gained -an entrance, gradually widening the space between the 
rock above and beneath. The waves have penetrated where no 
ancient tools could have reached, leaving the rocking stones all but 
separated from the blocks below. Their weight would effectually 
prevent an entire separation. 
Ancient Sea-cliff—Along the north-western side of the risen 
island I have been describing, there is a winding line of cliff for 
upwards of half a mile, which forcibly reminds a traveller of what 
he has often seen on the present sea-coast. The rocky pillars above 
mentioned would appear to be the remaining portions of the walls of 
narrow inlets scooped out by the sea, and ramifying from this line of 
