298 TRANSACTIONS OF THE PLYMOUTH INSTITUTION. 
The southernmost of the remains on Trowlesworthy is a stone 
avenue. 
This avenue is 426 feet long, and consists at present of 114 
stones, arranged for the most part in pairs ; though in some 
places, where stones have been removed, standing singly. On an 
average there seem to have been, when the avenue was perfect, a 
pair of stones to each six feet in length ; and the width, from out 
to out, is also six feet. 
To the north this avenue terminates in a circle of twenty-three 
feet diameter, consisting of eight stones all standing, and 
averaging about three feet high. 
The stone in this circle which stands nearest the avenue is very 
curiously shapen. It is broad and flat, and near the base a Y 
shaped piece has been chipped from either side, so as to give it a 
constricted appearance. 
Its total height is 4ft. 9in. ; its greatest width 1ft. 11 in. ; and its 
greatest thickness 7 inches. The girth at ground level is 5ft. 
lin., and at the centre of its height it girths 4ft. 9 in. ; but at one 
foot from the ground, where it has been cut as I have described, it 
only girths 2ft. lOin. At what date or for what purpose this 
stone was thus cut it is impossible to determine. (See figure 4.) 
A single pillar stands 112 feet from the south end of this 
avenue, and a little out of alignment with it. This has had a 
very narrow escape from being converted into a gate-post, as 
someone had already cut holes to lead in the lewis bolts, and then 
for an unknown reason failed to take the stone away. 
The avenue runs nearly north and south, but with a slight 
tendency to the north-east and south-west. It is not, strictly 
speaking, straight, but curves at the middle of its course slightly 
to the east. 
There is another avenue recorded by most observers, and marked 
on the Ordnance map. But this has always within my recollection 
been a single and not a double row of stones ; and so far as can at 
present be ascertained it always has been single. No subsequent 
spoliation will account for the loss of the second row ; for it is 
common experience that the best stones in both rows are usually 
removed, and not all on one side, as would have been the case in 
this instance. But the mistake of counting extraneous rocks on 
either side as fallen members of the avenue may easily have been 
made. 
