296 TRANSACTIONS OF THE PLYMOUTH INSTITUTION. 
The only antiquities of note are on the southern bank, and the 
first to which I shall refer lies, strictly speaking, just outside the 
Plym valley. 
On the summit of Hawks Tor is a curious arrangement of 
rocks, claimed by some as natural, by others as artificial. The 
square jointing of the granite has left in the solid rock which 
crowns the tor a rectangular area, enclosed on three sides by 
granite walls formed in the living rock. So far, I believe, all 
agree in assigning this object a natural origin. 
Over the area thus left in the rock extends a large, thin, flat 
slab, which is a separate block, and is not a part of the solid pile. 
This block forms, in fact, a roof to the chamber left by the 
jointing, and is the debatable point, it being argued on one side 
that it fell where it now lies without the assistance of man ; while 
others hold that its position points to an artificial origin. The 
latter is, I think, the correct interpretation of the facts. 
First as to the theory that it fell where it now lies. Being at 
the highest point of the rocks it had nowhere to fall from, except 
possibly the skies. 
Admitting, however, its possible aerial origin, and that is 
admitting a great deal, there still remains what to iny mind is 
absolute proof of man's assistance. 
On the western side the granite wall enclosing the chamber is 
lower than on the eastern; and accordingly the slab, if rested 
directly on these, would be on an incline. To obviate this 
the western wall has been raised to a level with the eastern by the 
addition of a rounded granite boulder ; and by resting on this, the 
surface of the slab is brought to a level. No more thoroughly 
artificial arrangement could be desired. It is a difficult matter to 
classify this antiquity — perhaps it might be called a cromlech. 
(See figure 2.) 
In the angle between the Shaugh and Leemoor roads at Cadover 
Bridge are the remains of two or three walled buildings, but their 
nature and use are now undiscoverable. 
Just above the lower reservoir belonging to the Shaugh clay 
works are the remains of an old enclosure and several hut circles. 
The enclosure is not strictly circular, but measures 232 feet on 
its north and south diameter, and thirty feet less, or 202 feet, from 
east to west. Within it are four hut-circles and the remains of an 
oval erection of similar nature. 
